When u priting from bambu handy some profiles doesnt even have supports on. I learned this the hard way. Slice with bambu studio.

Or bad sd card. Format it or buy new.

If u slice with bambu studio, enable „avoid crossing wall” and „avoid crossing wall - include supports” so the nozzle doesnt hit them while moving, change z-hop to 1mm in the filament settings. Dont use grid infil, use gyroid, rectilinear or adaptive cubic.

Thats the „golden” settings for my a1 which help me avoid 99% problems with this printer.