OK, HUH.
It seems like Bambu did fix the issue… after months of gaslighting us that E3D nozzles are of the wrong color, they … started to work.
Or at least, I’ve started 4 prints sequentially and didn’t have any issues with the nozzle detection.
I would encourage for anyone with E3D nozzles (ObX + Diamondback) to try and see if it got better for them.