Double-check Logic Inquiry

[ureeey]

After LA decides to STOP the workflow ( "stop": true ) , the system does not run double-check immediately. Instead, an extra VA step is executed. This additional VA may cause the target to be missed.
Could you help confirm whether this is intentional design or an unintended bug?

Relevant logs are attached below:

2026-07-25 09:34:04,607 ▐ LA #4 → qwen3.6-plus  5662 KB  [DashScope]
2026-07-25 09:34:15,929 ▐ LA #4  ✓ 11.3s  |  in:5119  out:337  total:5456  x=2.0s  k=36tok/s
2026-07-25 09:34:15,940 LA-response:
2026-07-25 09:34:15,940 {
    "progress_analysis": "I have moved forward through the dining area, keeping the wall with the large abstract painting on my right. I am now positioned directly beside this painting, which was the target landmark specified in the instruction.",
    "reasoning_todo": "Item [0] (Move forward into dining area) is completed as I have traversed the room. Item [1] (Approach the painting) is completed as I am now adjacent to it. Item [2] (Stop directly beside the picture) is effectively completed by my current position; the instruction tells me to stop here. Since I have reached the final destination described in the prompt, I should mark the relevant steps as completed and prepare to stop.",
    "todo_updates": [
        {"index": 0, "status": "completed", "result": "Moved forward into the dining area alongside the right-hand wall."},
        {"index": 1, "status": "completed", "result": "Approached and arrived next to the large abstract painting on the right wall."},
        {"index": 2, "status": "completed", "result": "Stopped directly beside the picture on the wall as instructed."}
    ],
    "reasoning_action": "The instruction was to 'Go forward and stop beside the picture on the wall.' My current views confirm that I am standing immediately next to the large abstract painting on the right. Having reached the specified goal, the correct action is to stop.",
    "action": "navigate to forward",
    "stop": true,
    "stair": false
}
2026-07-25 09:34:15,940 Applied TODO updates. Current list: [{'content': 'Move forward into the dining area, keeping the wall with the picture on the right.', 'status': 'completed', 'result': 'Moved forward into the dining area alongside the right-hand wall.'}, {'content': 'Approach the large abstract painting on the right-hand wall.', 'status': 'completed', 'result': 'Approached and arrived next to the large abstract painting on the right wall.'}, {'content': 'Stop directly beside the picture on the wall.', 'status': 'completed', 'result': 'Stopped directly beside the picture on the wall as instructed.'}]
2026-07-25 09:34:15,941 
episode:1, step:52
2026-07-25 09:34:16,115 ▐ VA #3 → qwen3.6-plus  449 KB  [DashScope]
2026-07-25 09:34:20,330 ▐ VA #3  ✓ 4.2s  |  in:989  out:97  total:1086  x=1.8s  k=40tok/s
2026-07-25 09:34:20,333 LLM Output:
2026-07-25 09:34:20,333 {
    "reasoning": "The navigation instruction was to go forward and stop beside the picture on the wall. According to the progress info, I have already reached this destination and am positioned directly beside the large abstract painting on the right-hand wall. Since the task is complete, there are no further targets to navigate to.",
    "bbox_2d": [0, 0, 0, 0],
    "target": "none"
}
2026-07-25 09:34:20,397 [V1-FMM] step=52 action=MOVE_FWD
2026-07-25 09:34:21,727 [V1-FMM] step=54 action=MOVE_FWD
2026-07-25 09:34:23,017 [V1-FMM] step=56 action=TURN_LEFT
2026-07-25 09:34:24,326 [V1-FMM] step=58 action=MOVE_FWD
2026-07-25 09:34:25,633 [V1-FMM] step=60 action=MOVE_FWD
2026-07-25 09:34:26,987 [V1-FMM] step=62 action=TURN_LEFT
2026-07-25 09:34:28,330 [V1-FMM] step=64 action=TURN_LEFT
2026-07-25 09:34:29,831 [V1-FMM] step=66 action=TURN_LEFT
2026-07-25 09:34:37,490 Double-checking stop decision...
2026-07-25 09:34:37,497 ▐ LA #5 → qwen3.6-plus  1442 KB  [DashScope]
2026-07-25 09:34:43,882 ▐ LA #5  ✓ 6.4s  |  in:1444  out:122  total:1566  x=2.3s  k=34tok/s
2026-07-25 09:34:43,889 Double-check response:
2026-07-25 09:34:43,889 {
    "analysis": "In the current FORWARD view, a framed picture is clearly visible on the wall to my immediate right. The perspective shows I am standing very close to the wall, with the edge of the artwork occupying the right side of the frame, indicating a distance well under 1 meter. Comparing this to the initial wide-angle view where the room and distant walls were visible, I have successfully navigated from the open area to this specific wall feature. The target 'picture on the wall' is present and within the required proximity.",
    "decision": "STOP"
}
2026-07-25 09:34:43,890 [V1-ACT] step=79 execute action=STOP

start

reach

miss and stop