Hi,
One additional thing that might be worth checking is the orientation and placement of the calibration sticker/marker on the bed. There is at least one documented case where laser calibration repeatedly failed until the user discovered that the micro LiDAR calibration sticker had been applied in the wrong orientation from the factory; after removing it and rotating it 180 degrees, the calibration completed successfully and the laser functioned as expected.
Reference thread:
Given that your Birdseye calibration consistently fails when the toolhead passes over the calibration sticker near the top right of the heated bed, it might be a similar situation: the sticker can look clean and intact, but if it is slightly misaligned or rotated, the camera/LiDAR may not be able to recognize the pattern correctly. I would recommend having support double‑check both the orientation and exact positioning of that calibration marker as a potential root cause.