Troubleshooting & checklists

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Common failure points

• Camera mount wobble
• AprilTag wrinkles or poor tag detection
• Background sheet sagging or wrinkling
• Wrong camera index in the calibration script
• SO-101 calibration not saved in the expected folder
• Running a policy before matching the setup overlay

Consolidated checklists

• D455 mount is secure and does not wobble.
• Rubber grip tape is installed inside the top camera hooks.
• Light box is bright and the diffuser is taut.
• Background sheet is flat in the camera view.
• AprilTag is aligned and flat.
• SO-101 calibration JSON is in the correct directory.
• Camera overlays match the reference images.
• Policy evaluation only begins after the live scene matches the overlay.