I had the reverse issue in one of my models. I exported it for A1 mini, and people the printed on P1 from the Handy app ended up with the model half off the plate. Works fine in bambu studio.
I was able to fix the issue on my end by moving the model 1mm and re-exporting. It shouldn’t have made ANY difference because it was a tiny move, but it resulted in the model moving well over 1 inch on the p1 plate.
Picture posted by the user after my new export.
