I just swapped hotends to a 0.6, and forgot to put the cover back on. I went to Bambu Studio, and launched a print, with the ‘bed level’; option checked. I noticed in the video that the cover was not on. The machine was happily doing the bed leveling, without throwing an error. I reached in and put the cover on while it was moving. It continued leveling, and then started the print.
I think it should have warned me…