I have one P1S and something happen to the project. I also have an AMS. I will attach some pictures so you can help. It was with bambu basic pla, black and white, 0.4mm nozzle. I was having some problems with layer shift and only grease after this happen. Will the maintenance solve this or something else happen? I will also attach the 3mf.
Thank you
It looks like a large part. For the damaged corners, I suspect the corners lifted slightly off the build plate causing the nozzle to strike previous applied layers. For a remedy, at a minimum I would use glue on the build plate and possibly even add a brim with 0 (zero) clearance (an advanced setting) to help hold the corners down.