Layer problem

[JonRaymond]

Is this a slicer or .stl problem

It doesn’t look like the face is laying flat on the build plate. First I would try “Auto Orient” (3rd icon from the left at the top) and see if Bambu Studio will fix it. If this doesn’t work, click the object, press “F” and select the bottom face of the model (it will have a white oval on the face) and this will lay that face flat to the bed.