Failures out of nowhere

[JonRaymond]

Welcome to the forum.

@user_83665063

But this time I monitored the process and noticed that in this last failed print, that the first layer was not completely put down before the analysis process

This tells me that your model isn’t laying flat on the build plate. Bambu Studio doesn’t always import a model perfectly flat to the build plate.

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.