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string
task_id
string
episode
string
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string
hdf5
string
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float64
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list
reason
string
avoidance
string
pour_ball_transfer_cup_episode_19
pour_ball_transfer_cup
episode_19
aloha
episodes/pour_ball_transfer_cup_episode_19.hdf5
fail
1.145998
[ "wrong_object" ]
Expected: The right arm should align with and grasp the yellow cup. Observation: The right gripper closed on the blue cup instead. Result: The right arm lifted the empty blue cup.
Move the right arm to align with the yellow cup instead of the blue cup.
pour_ball_transfer_cup_episode_20
pour_ball_transfer_cup
episode_20
aloha
episodes/pour_ball_transfer_cup_episode_20.hdf5
fail
47.88
[ "translation_error" ]
Expected: Use the left arm to grasp the ball in the orange bowl Observation: left gripper is offset slightly upward relative to the ball Result: left gripper closed completely on empty space, leaving the ball behind inside the bowl
move the left arm slightly downward to align with the ball before grasping
pour_ball_transfer_cup_episode_21
pour_ball_transfer_cup
episode_21
aloha
episodes/pour_ball_transfer_cup_episode_21.hdf5
fail
54.301222
[ "wrong_placement" ]
Expected: Move the left arm to place the ball into the blue cup Observation: The left arm released the ball into the yellow cup Result: The ball was dropped into the yellow cup instead of the blue cup.
Move the left arm to place the ball into the blue cup
pour_ball_transfer_cup_episode_23
pour_ball_transfer_cup
episode_23
aloha
episodes/pour_ball_transfer_cup_episode_23.hdf5
success
null
null
null
null
empty_bowl_insert_block_episode_24
empty_bowl_insert_block
episode_24
aloha
episodes/empty_bowl_insert_block_episode_24.hdf5
success
null
null
null
null
empty_bowl_insert_block_episode_25
empty_bowl_insert_block
episode_25
aloha
episodes/empty_bowl_insert_block_episode_25.hdf5
fail
64.698646
[ "translation_error" ]
Expected: Use the left arm to align over and insert the small block into the second slot from the right of the 4 slot block Observation: left arm attempted to insert the block into the leftmost slot Result: small block collided with the 4 slot block, tipping it over and failing the assembly
Use the left arm to align over and insert the small block into the second slot from the right of the 4 slot block
empty_bowl_insert_block_episode_26
empty_bowl_insert_block
episode_26
aloha
episodes/empty_bowl_insert_block_episode_26.hdf5
fail
54.996332
[ "translation_error", "wrong_placement" ]
Expected: Use the left arm to align over and insert the small block into the second slot from the right of the 4 slot block Observation: the left gripper insert the small blcok to the leftmost slot. Result: the small block was assembled into the wrong slot
Use the left arm to align over and insert the small block into the second slot from the right of the 4 slot block
empty_bowl_insert_block_episode_27
empty_bowl_insert_block
episode_27
aloha
episodes/empty_bowl_insert_block_episode_27.hdf5
fail
0
[ "wrong_gripper" ]
Expected: Move the right arm to grasp the blue blocks Observation: The left arm is already grasping a block Result: The left arm executes the right arm's designated task, violating the instruction.
Use the right arm to approach and grasp the blocks in the bowl.
balls_to_egg_carton_episode_13
balls_to_egg_carton
episode_13
aloha
episodes/balls_to_egg_carton_episode_13.hdf5
fail
47.59
[ "translation_error", "wrong_placement" ]
Eexpected: use the left gripper to move the ball into the empty slot of the egg carton. Observed: the left gripper move d the ball to the opening lid of the egg carton Result: the ball is not placed into the slot of the egg carton
Move the left gripper to align with the empty slot instead of the opening lid
balls_to_egg_carton_episode_28
balls_to_egg_carton
episode_28
aloha
episodes/balls_to_egg_carton_episode_28.hdf5
success
null
null
null
null
balls_to_egg_carton_episode_29
balls_to_egg_carton
episode_29
aloha
episodes/balls_to_egg_carton_episode_29.hdf5
fail
61.142777
[ "translation_error" ]
Expected: use the left gripper to grasp the white left-side ball Observation: the left gripper is slightly upward offset relative to the ball Result: the ball is not grasped and is left on the table
MOve the left griper slightly downward to align with the ball
balls_to_egg_carton_episode_30
balls_to_egg_carton
episode_30
aloha
episodes/balls_to_egg_carton_episode_30.hdf5
fail
29.661111
[ "wrong_gripper" ]
Expected: Use the left arm to move to and grasp the left-side balls Observation: the right arm moved to the left side and its gripper grasped the blue ball Result: the right arm improperly took over the task assigned to the left arm
Use the left arm instead of the right to move to and grasp the left-side balls
stack_cup_pyramid_episode_31
stack_cup_pyramid
episode_31
aloha
episodes/stack_cup_pyramid_episode_31.hdf5
success
null
null
null
null
stack_cup_pyramid_episode_32
stack_cup_pyramid
episode_32
aloha
episodes/stack_cup_pyramid_episode_32.hdf5
fail
45.715569
[ "closing_error" ]
Expected: Use the right gripper to grasp a single paper cup. Observation: The right gripper closed too much, causing it to grasp two stacked cups instead of one. Result: The right gripper failed to separate the two paper cups.
Close the gripper with larger aperture to pick up a single cup instead of two
stack_cup_pyramid_episode_33
stack_cup_pyramid
episode_33
aloha
episodes/stack_cup_pyramid_episode_33.hdf5
fail
49.52
[ "wrong_placement", "translation_error" ]
Expected: Use the right gripper to release the cup onto the table. Observation: The right gripper released the cup, stacking it on top of another cup in the pyramid. Result: The cup was stacked onto the pyramid instead of being placed on the table.
Use the right gripper to release the cup onto the table.
stack_cup_pyramid_episode_34
stack_cup_pyramid
episode_34
aloha
episodes/stack_cup_pyramid_episode_34.hdf5
fail
104.393384
[ "closing_error" ]
Expected: use the left arm to transport the cup on top of the pyramid Observation: the right gripper sliped the cup during transporting the cup Result: The cup dropped off on the table, and tje pyramid is incomplete.
close the gripper thightly while moving
bottle_to_bowl_and_cover_episode_36
bottle_to_bowl_and_cover
episode_36
aloha
episodes/bottle_to_bowl_and_cover_episode_36.hdf5
fail
59.6
[ "translation_error" ]
Expected: release the white object centered over the bottle to mask it. Observation: the left gripper released the white object with a translation offset relative to the bottle cap Result: The bottle lost balance and fell onto the table.
Move the left gripper slightly to center the white object perfectly over the bottle before releasing
bottle_to_bowl_and_cover_episode_37
bottle_to_bowl_and_cover
episode_37
aloha
episodes/bottle_to_bowl_and_cover_episode_37.hdf5
success
null
null
null
null
bottle_to_bowl_and_cover_episode_38
bottle_to_bowl_and_cover
episode_38
aloha
episodes/bottle_to_bowl_and_cover_episode_38.hdf5
fail
17.02
[ "closing_error" ]
Expected: Use the right arm to transport the bottle into the bowl. Observation: The bottle slipped from the right gripper during transport. Result: The bottle was left on the table outside the bowl.
close the gripper tightly while moving the object
uncap_marker_draw_recap_episode_39
uncap_marker_draw_recap
episode_39
aloha
episodes/uncap_marker_draw_recap_episode_39.hdf5
success
null
null
null
null
uncap_marker_draw_recap_episode_41
uncap_marker_draw_recap
episode_41
aloha
episodes/uncap_marker_draw_recap_episode_41.hdf5
fail
71.6
[ "translation_error" ]
Expected: Use the right arm to release the marker inside the cup. Observation: The right gripper dropped the marker with a slight offset to the right, causing it to collide with the rim of the cup. Result: The marker struck the cup's rim, tipping the cup over and falling onto the whiteboard.
Move the right arm to properly center the marker over the cup opening before releasing it
uncap_marker_draw_recap_episode_42
uncap_marker_draw_recap
episode_42
aloha
episodes/uncap_marker_draw_recap_episode_42.hdf5
fail
21.08
[ "translation_error" ]
Expected: Move the left arm to align with the cap. Observation: The left gripper was offset slightly to the left and failed to grasp the cap. Result: The left gripper missed the cap, leaving the marker capped in the right arm.
Move the left gripper further to the right to align with the cap.
uncap_marker_draw_recap_episode_43
uncap_marker_draw_recap
episode_43
aloha
episodes/uncap_marker_draw_recap_episode_43.hdf5
fail
5.84
[ "wrong_sequence", "closing_error" ]
Expected: Use the right arm to move the marker towards the left arm. Observation: The right arm dropped the marker directly instead of moving it towards the left arm. Result: The marker fell and collided with the cup rim, causing it to fall.
keep the right gripper closed on the marker and move towards the left arm
yellow_red_blocks_to_bowls_episode_0
yellow_red_blocks_to_bowls
episode_0
aloha
episodes/yellow_red_blocks_to_bowls_episode_0.hdf5
fail
12.978725
[ "wrong_placement" ]
Expected: The right arm should place the yellow block into the yellow bowl on the left. Observation: The right arm released the yellow block into the orange bowl Result: The yellow block was placed into the incorrect bowl.
move the right arm to align the yellow block with the yellow bowl
yellow_red_blocks_to_bowls_episode_2
yellow_red_blocks_to_bowls
episode_2
aloha
episodes/yellow_red_blocks_to_bowls_episode_2.hdf5
fail
3.856999
[ "wrong_object" ]
Expected: use the right arm to move to and grasp the yellow block Observation: the right gripper closed on the red block Result: the right arm grasped the wrong object and placed it into the yellow bowl
move the right arm to grasp the yellow block instead of the red block
yellow_red_blocks_to_bowls_episode_4
yellow_red_blocks_to_bowls
episode_4
aloha
episodes/yellow_red_blocks_to_bowls_episode_4.hdf5
success
null
null
null
null
stabilize_and_insert_block_episode_6
stabilize_and_insert_block
episode_6
aloha
episodes/stabilize_and_insert_block_episode_6.hdf5
success
null
null
null
null
stabilize_and_insert_block_episode_7
stabilize_and_insert_block
episode_7
aloha
episodes/stabilize_and_insert_block_episode_7.hdf5
success
null
null
null
null
stabilize_and_insert_block_episode_8
stabilize_and_insert_block
episode_8
aloha
episodes/stabilize_and_insert_block_episode_8.hdf5
fail
12.697703
[ "closing_error" ]
Expected: Use the left arm to maintain its grasp on the blue block while using the right arm to grasp the small block. Observation: The left gripper failed to maintain its grasp to stabilize the blue block, while the right arm simultaneously failed to grasp the small block. Result: The small block was never grasped and...
keep holding the blue blocks and grasp the small block once aligned
stabilize_and_insert_block_episode_9
stabilize_and_insert_block
episode_9
aloha
episodes/stabilize_and_insert_block_episode_9.hdf5
fail
9.753333
[ "translation_error" ]
Expected: Move the right arm to grasp the small block. Observation: The right arm was offset slightly to the right of the small block. Result: The small block was never grasped and remained on the table.
Move the right arm slightly to the left to align with the small block
balls_to_rack_episode_00
balls_to_rack
episode_00
so101
episodes/balls_to_rack_episode_00.hdf5
fail
47.241913
[ "closing_error" ]
Expected: The left gripper should close firmly on the yellow ball. Observation: The left gripper shifted as it closed, squeezing the ball out. Result: The yellow ball stayed on the table and was never transferred.
Close the left gripper firmly on the yellow ball before transferring it.
balls_to_rack_episode_01
balls_to_rack
episode_01
so101
episodes/balls_to_rack_episode_01.hdf5
success
null
null
null
null
balls_to_rack_episode_02
balls_to_rack
episode_02
so101
episodes/balls_to_rack_episode_02.hdf5
fail
76.420925
[ "wrong_placement", "translation_error" ]
Expected: The left gripper should release the last green ball into a cup. Observation: The left gripper opened over the carton lid instead of a cup. Result: The green ball landed on the lid, outside every cup.
Align the left gripper with a free cup before releasing the green ball.
balls_to_rack_episode_03
balls_to_rack
episode_03
so101
episodes/balls_to_rack_episode_03.hdf5
fail
26.520858
[ "translation_error", "wrong_placement" ]
Expected: The right gripper should release the orange ball into a cup. Observation: The right gripper opened over the carton lid instead of a cup. Result: The orange ball came to rest on the lid, outside every cup.
Align the right gripper with a free cup before releasing the orange ball.
balls_to_rack_episode_04
balls_to_rack
episode_04
so101
episodes/balls_to_rack_episode_04.hdf5
success
null
null
null
null
balls_to_rack_episode_05
balls_to_rack
episode_05
so101
episodes/balls_to_rack_episode_05.hdf5
success
null
null
null
null
balls_to_rack_episode_06
balls_to_rack
episode_06
so101
episodes/balls_to_rack_episode_06.hdf5
fail
16.853203
[ "translation_error" ]
Expected: The right gripper should close centred on the yellow ball. Observation: The right gripper came down offset and closed off-centre on the ball. Result: The yellow ball was squeezed out and the gripper closed empty.
Centre the right gripper on the yellow ball before closing it.
balls_to_rack_episode_07
balls_to_rack
episode_07
so101
episodes/balls_to_rack_episode_07.hdf5
fail
55.446167
[ "wrong_placement", "translation_error" ]
Expected: The left gripper should release the green ball into a cup. Observation: The left gripper opened over the lid before reaching a free cup. Result: The green ball fell onto the lid instead of into a slot.
Align the left gripper with a free cup before releasing the green ball.
balls_to_rack_episode_08
balls_to_rack
episode_08
so101
episodes/balls_to_rack_episode_08.hdf5
fail
72.620458
[ "wrong_placement", "translation_error" ]
Expected: The left arm should release the pink ball into a free cup. Observation: The left gripper opened over the carton rim, not over a cup. Result: The pink ball slid off the carton onto the table, outside every slot.
Align the left arm with a free cup before releasing the pink ball.
balls_to_rack_episode_09
balls_to_rack
episode_09
so101
episodes/balls_to_rack_episode_09.hdf5
success
null
null
null
null
balls_to_rack_episode_10
balls_to_rack
episode_10
so101
episodes/balls_to_rack_episode_10.hdf5
success
null
null
null
null
balls_to_rack_episode_11
balls_to_rack
episode_11
so101
episodes/balls_to_rack_episode_11.hdf5
fail
103.486389
[ "translation_error" ]
Expected: The left gripper should close on the green ball. Observation: The left gripper closed offset from the green ball. Result: The grasp was empty and the green ball stayed on the table.
Align the left gripper with the green ball before closing it.
balls_to_rack_episode_12
balls_to_rack
episode_12
so101
episodes/balls_to_rack_episode_12.hdf5
fail
30.407345
[ "translation_error", "wrong_placement" ]
Expected: The right gripper should release the red ball into a cup. Observation: The right gripper opened over the carton edge, not over a cup. Result: The red ball slid off the carton onto the table, outside every slot.
Align the right gripper with a free cup before releasing the red ball.
balls_to_rack_episode_13
balls_to_rack
episode_13
so101
episodes/balls_to_rack_episode_13.hdf5
fail
16.928948
[ "wrong_placement", "translation_error" ]
Expected: The right gripper should release the orange ball into a cup. Observation: The right gripper opened over the carton lid rather than a cup. Result: The orange ball settled on the lid and never entered a slot.
Align the orange ball with a free cup before opening the right gripper.
balls_to_rack_episode_14
balls_to_rack
episode_14
so101
episodes/balls_to_rack_episode_14.hdf5
success
null
null
null
null
balls_to_rack_episode_15
balls_to_rack
episode_15
so101
episodes/balls_to_rack_episode_15.hdf5
fail
47.206255
[ "translation_error", "wrong_placement" ]
Expected: The left gripper should release the blue ball into a cup. Observation: The left gripper opened over the lid before aligning with a cup. Result: The blue ball dropped onto the lid instead of into a slot.
Align the left gripper with a free cup before releasing the blue ball.
balls_to_rack_episode_16
balls_to_rack
episode_16
so101
episodes/balls_to_rack_episode_16.hdf5
success
null
null
null
null
balls_to_rack_episode_17
balls_to_rack
episode_17
so101
episodes/balls_to_rack_episode_17.hdf5
fail
29.206246
[ "wrong_placement" ]
Expected: The right gripper should release the yellow ball into a cup. Observation: The right gripper opened over the carton edge, not over a cup. Result: The yellow ball slid off the carton onto the table beside it.
Align the yellow ball with the target cup before opening the right gripper.
balls_to_rack_episode_19
balls_to_rack
episode_19
so101
episodes/balls_to_rack_episode_19.hdf5
fail
47.833271
[ "closing_error" ]
Expected: The left gripper should hold the blue ball during transfer. Observation: The left gripper's hold loosened and the blue ball slipped out. Result: The blue ball fell back onto the table, never reaching a cup.
Keep the left gripper closed on the blue ball throughout the transfer.
block_assembly_episode_00
block_assembly
episode_00
so101
episodes/block_assembly_episode_00.hdf5
success
null
null
null
null
block_assembly_episode_01
block_assembly
episode_01
so101
episodes/block_assembly_episode_01.hdf5
success
null
null
null
null
block_assembly_episode_03
block_assembly
episode_03
so101
episodes/block_assembly_episode_03.hdf5
fail
33.193632
[ "wrong_placement", "translation_error" ]
Expected: The left arm should place the second yellow bar on the stack. Observation: The left gripper released the yellow bar one bar-width behind the stack. Result: The bar settled on the mat, leaving the top layer unassembled.
Centre the yellow bar over the red and green bricks before releasing it.
block_assembly_episode_04
block_assembly
episode_04
so101
episodes/block_assembly_episode_04.hdf5
success
null
null
null
null
block_assembly_episode_05
block_assembly
episode_05
so101
episodes/block_assembly_episode_05.hdf5
fail
38.558143
[ "wrong_placement", "translation_error" ]
Expected: The left arm should seat the second yellow bar on the four studs. Observation: The left gripper released the yellow bar off the four studs. Result: The bar did not seat and the stack collapsed on the mat.
Align the yellow bar with the stack's four studs before lowering it.
block_assembly_episode_06
block_assembly
episode_06
so101
episodes/block_assembly_episode_06.hdf5
success
null
null
null
null
block_assembly_episode_07
block_assembly
episode_07
so101
episodes/block_assembly_episode_07.hdf5
fail
7.015
[ "wrong_placement" ]
Expected: The left arm should seat the red brick at one end of the yellow bar. Observation: The left gripper pressed the red brick onto the two middle studs. Result: The red brick ended centred, which violates the assembly rule.
Seat the red brick on the two studs at one end of the yellow bar.
block_assembly_episode_08
block_assembly
episode_08
so101
episodes/block_assembly_episode_08.hdf5
fail
3.543107
[ "wrong_sequence" ]
Expected: The left arm should grasp the green brick to stack on the yellow bar. Observation: The left gripper closed on the second yellow bar instead. Result: That bar ended stacked on the base bar, violating the stacking order.
Grasp the green brick with the left gripper and stack it on the yellow bar.
block_assembly_episode_09
block_assembly
episode_09
so101
episodes/block_assembly_episode_09.hdf5
fail
3.884564
[ "wrong_sequence", "wrong_object" ]
Expected: The right arm should first seat a small brick on the yellow base bar. Observation: The right gripper capped one yellow bar with the other one first. Result: The two bars ended joined directly, violating the stacking order.
Stack the two small bricks on the yellow bar before capping with the second.
block_assembly_episode_10
block_assembly
episode_10
so101
episodes/block_assembly_episode_10.hdf5
fail
16.207467
[ "wrong_placement" ]
Expected: The right arm should seat the green brick on the bar's free half. Observation: The right gripper released the green brick onto the other yellow bar. Result: The bricks ended on separate bars, violating the stacking order.
Seat the green brick on the same yellow bar that carries the red brick.
block_assembly_episode_11
block_assembly
episode_11
so101
episodes/block_assembly_episode_11.hdf5
success
null
null
null
null
block_assembly_episode_12
block_assembly
episode_12
so101
episodes/block_assembly_episode_12.hdf5
success
null
null
null
null
block_assembly_episode_13
block_assembly
episode_13
so101
episodes/block_assembly_episode_13.hdf5
success
null
null
null
null
blocks_to_bowls_episode_00
blocks_to_bowls
episode_00
so101
episodes/blocks_to_bowls_episode_00.hdf5
success
null
null
null
null
blocks_to_bowls_episode_01
blocks_to_bowls
episode_01
so101
episodes/blocks_to_bowls_episode_01.hdf5
fail
62.713544
[ "orientation_error", "translation_error" ]
Expected: The right arm should align with the green cube and grasp it. Observation: The right gripper closed before aligning with the green cube. Result: The grasp failed and the green cube stayed on the table.
Align the right gripper with the green cube before closing it.
blocks_to_bowls_episode_02
blocks_to_bowls
episode_02
so101
episodes/blocks_to_bowls_episode_02.hdf5
success
null
null
null
null
blocks_to_bowls_episode_03
blocks_to_bowls
episode_03
so101
episodes/blocks_to_bowls_episode_03.hdf5
success
null
null
null
null
blocks_to_bowls_episode_04
blocks_to_bowls
episode_04
so101
episodes/blocks_to_bowls_episode_04.hdf5
fail
39.725431
[ "wrong_placement" ]
Expected: The left arm should drop the orange cube into the orange bowl. Observation: The left arm released the orange cube over the yellow bowl. Result: The orange cube ended up in the yellow bowl, so the colours do not match.
Release the orange cube over the orange bowl, not the yellow bowl.
cube_stack_episode_00
cube_stack
episode_00
so101
episodes/cube_stack_episode_00.hdf5
success
null
null
null
null
cube_stack_episode_01
cube_stack
episode_01
so101
episodes/cube_stack_episode_01.hdf5
success
null
null
null
null
cube_stack_episode_02
cube_stack
episode_02
so101
episodes/cube_stack_episode_02.hdf5
fail
25.89472
[ "translation_error", "wrong_placement" ]
Expected: The right arm should place the red cube on top of the stack. Observation: The right gripper opened while the red cube was beside the stack's top. Result: The red cube fell onto the table and the stack stayed two cubes high.
Align the red cube over the stack before opening the right gripper.
cube_stack_episode_03
cube_stack
episode_03
so101
episodes/cube_stack_episode_03.hdf5
fail
2.560555
[ "translation_error" ]
Expected: The right arm should grasp the yellow cube and lift it. Observation: The right gripper closed offset from the yellow cube. Result: The gripper came up empty and no cube reached the stack.
Line the right gripper up with the yellow cube before closing it.
cube_stack_episode_04
cube_stack
episode_04
so101
episodes/cube_stack_episode_04.hdf5
fail
13.159259
[ "translation_error" ]
Expected: The right arm should place the green cube on top of the stack. Observation: The right gripper released the green cube off the stack's top face. Result: The stack toppled, leaving all three cubes lying on the table.
Align the green cube over the stack before releasing it.
cube_stack_episode_05
cube_stack
episode_05
so101
episodes/cube_stack_episode_05.hdf5
success
null
null
null
null
cube_stack_episode_06
cube_stack
episode_06
so101
episodes/cube_stack_episode_06.hdf5
fail
17.757777
[ "translation_error" ]
Expected: The right arm should place the green cube on top of the stack. Observation: The right gripper released the green cube against the side of the stack. Result: The falling green cube knocked the stack over onto the table.
Slow down and align the green cube over the stack before releasing it.
cube_stack_episode_07
cube_stack
episode_07
so101
episodes/cube_stack_episode_07.hdf5
fail
20.876419
[ "wrong_sequence", "wrong_placement" ]
Expected: The right arm should place the green cube on the two-cube tower. Observation: The right gripper released the green cube on the loose red cube, not the tower. Result: A separate green-on-red pile formed and the tower stayed two cubes high.
Release the cube on the two-cube tower, not on the loose red cube.
cube_stack_episode_08
cube_stack
episode_08
so101
episodes/cube_stack_episode_08.hdf5
success
null
null
null
null
cube_stack_episode_09
cube_stack
episode_09
so101
episodes/cube_stack_episode_09.hdf5
fail
45.084753
[ "translation_error", "orientation_error" ]
Expected: The right arm should place the purple cube on top of the tower. Observation: The right gripper opened with the purple cube past the tower's top, askew. Result: The purple cube dropped onto the table and the tower stayed standing.
Align the purple cube over the tower before opening the right gripper.
cube_stack_episode_10
cube_stack
episode_10
so101
episodes/cube_stack_episode_10.hdf5
success
null
null
null
null
cube_stack_episode_11
cube_stack
episode_11
so101
episodes/cube_stack_episode_11.hdf5
success
null
null
null
null
cube_stack_episode_12
cube_stack
episode_12
so101
episodes/cube_stack_episode_12.hdf5
fail
35.055738
[ "translation_error" ]
Expected: The right arm should place the last purple cube on top of the tower. Observation: The right gripper opened with the purple cube offset from the tower's top. Result: The cube fell to the table and the tower collapsed as the arm withdrew.
Align the last purple cube over the tower before opening the right gripper.
cube_stack_episode_14
cube_stack
episode_14
so101
episodes/cube_stack_episode_14.hdf5
fail
40.775418
[ "translation_error", "orientation_error" ]
Expected: The right arm should place the last purple cube on top of the tower. Observation: The right gripper released the purple cube misaligned over the tower's top. Result: The tower toppled, leaving all four cubes lying on the table.
Align the purple cube with the tower's top before releasing it.
cube_stack_episode_15
cube_stack
episode_15
so101
episodes/cube_stack_episode_15.hdf5
success
null
null
null
null
cube_stack_episode_16
cube_stack
episode_16
so101
episodes/cube_stack_episode_16.hdf5
success
null
null
null
null
cube_stack_episode_17
cube_stack
episode_17
so101
episodes/cube_stack_episode_17.hdf5
success
null
null
null
null
cube_stack_episode_18
cube_stack
episode_18
so101
episodes/cube_stack_episode_18.hdf5
success
null
null
null
null
cube_stack_episode_19
cube_stack
episode_19
so101
episodes/cube_stack_episode_19.hdf5
success
null
null
null
null
handover_episode_00
handover
episode_00
so101
episodes/handover_episode_00.hdf5
success
null
null
null
null
handover_episode_01
handover
episode_01
so101
episodes/handover_episode_01.hdf5
fail
25.72
[ "translation_error" ]
Expected: The right arm should take the block from the left arm. Observation: The right gripper closed beside the block instead of around it. Result: The block fell onto the table when the left gripper opened.
Align the right gripper with the block before closing it.
handover_episode_02
handover
episode_02
so101
episodes/handover_episode_02.hdf5
fail
49.319987
[ "open_error" ]
Expected: The left gripper should open once the right gripper has the block. Observation: The left gripper stayed shut on the block and never released it. Result: The block was never transferred to the right arm.
Open the left gripper once the right gripper has closed on the block.
handover_episode_03
handover
episode_03
so101
episodes/handover_episode_03.hdf5
fail
19.486666
[ "wrong_placement", "translation_error" ]
Expected: The right arm should release the toy fries carton over the bowl. Observation: The gripper opened while the carton was still short of the bowl. Result: The carton landed on its side on the table beside the bowl.
Centre the toy fries carton over the bowl before opening the gripper.
handover_episode_04
handover
episode_04
so101
episodes/handover_episode_04.hdf5
success
null
null
null
null
handover_episode_05
handover
episode_05
so101
episodes/handover_episode_05.hdf5
fail
24.56574
[ "translation_error" ]
Expected: The right arm should take the block from the left arm. Observation: The right gripper closed past the block instead of around it. Result: The block dropped onto the table beside the bowl when the left gripper opened.
Align the right arm with the block before closing the gripper.
handover_episode_06
handover
episode_06
so101
episodes/handover_episode_06.hdf5
success
null
null
null
null
handover_episode_07
handover
episode_07
so101
episodes/handover_episode_07.hdf5
success
null
null
null
null
handover_episode_08
handover
episode_08
so101
episodes/handover_episode_08.hdf5
fail
25.93327
[ "translation_error" ]
Expected: The left arm should take the toy fries carton from the right arm. Observation: The left gripper closed on air, offset from the carton. Result: The carton fell onto the table and never reached the left arm.
Align the left gripper with the toy fries carton before closing it.
handover_episode_09
handover
episode_09
so101
episodes/handover_episode_09.hdf5
fail
32.661909
[ "closing_error" ]
Expected: The left arm should carry the block to the bowl. Observation: The left gripper opened partway through the carry. Result: The block fell onto the table beside the bowl.
Keep the left gripper closed on the block until it is above the bowl.
handover_episode_10
handover
episode_10
so101
episodes/handover_episode_10.hdf5
fail
45.233333
[ "wrong_sequence" ]
Expected: The right arm should also pass the block across. Observation: The right gripper never closed on the block. Result: The block stayed on the passer's side, with only two items in the bowl.
Grasp the block with the right arm and pass it across as well.
handover_episode_12
handover
episode_12
so101
episodes/handover_episode_12.hdf5
success
null
null
null
null
handover_episode_13
handover
episode_13
so101
episodes/handover_episode_13.hdf5
fail
10.430853
[ "translation_error", "orientation_error" ]
Expected: The right arm should take the block from the left arm. Observation: The right gripper closed offset and unsquared, catching only the block's edge. Result: The block fell onto the table beside the barrier's base.
Align the right arm square to the block's faces before closing the gripper.
handover_episode_14
handover
episode_14
so101
episodes/handover_episode_14.hdf5
success
null
null
null
null

FailTime

Failure annotations for robot manipulation rollouts, from the paper ProTracer: Proprioception-Guided Failure Diagnosis in Robot Manipulation. Each episode is labelled as a success or a failure, and every failure carries the moment it went wrong, its failure type, the reason, and how it could have been avoided.

  • FailTime-Short — annotations for ViFailback recordings (AgileX Piper). Download ViFailback separately for the episodes themselves.
  • FailTime-Long — long-horizon bimanual recordings (ALOHA and SO-101), included here as self-contained HDF5 files.

Layout

failtime_short/    train.json  test.json  tasks/
failtime_long/     test.json   tasks/     episodes/*.hdf5

tasks/ holds one XML per task: instruction, objects and substages.

Annotations

{"sample": "pour_ball_transfer_cup_episode_19", "task_id": "pour_ball_transfer_cup", "episode": "episode_19",
 "robot": "aloha", "hdf5": "episodes/pour_ball_transfer_cup_episode_19.hdf5", "verdict": "fail",
 "onset": 1.146, "type": ["wrong_object"], "reason": "Expected: ...", "avoidance": "..."}

onset (seconds), type, reason and avoidance are given for failures only.

Episodes

Every FailTime-Long HDF5 holds one episode:

observation.state_eef both end-effectors: xyz, quaternion xyzw, gripper
observation.state, action joint states and actions (observation.effort on ALOHA)
observation.images.<camera>/mp4_bytes three camera videos: left wrist, right wrist, overhead
timestamp, frame_index, episode_index, next.done frame bookkeeping

Usage

hf download ChangUoA/FailTime --repo-type dataset --local-dir data
ln -s /path/to/ViFailback/raw_data data/failtime_short/episodes

The code is at github.com/Chang-AIML/ProTracer.

Citation

@article{dong2026protracer,
  title  = {ProTracer: Proprioception-Guided Failure Diagnosis in Robot Manipulation},
  author = {Dong, Chang and Hosseinzadeh, Mehdi and Wong, King Hang and Liu, Lingqiao and Fraysse, Francois and Dayoub, Feras and Nguyen, Minh Hoai},
  year   = {2026}
}
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