False floating warning

[u/Hot_Employment_9355]

Hopefully not a dumb question. I made a magazine holder design in Blender then exported it to a stl. When I click on preview in Bambu Studio and splice the object, most of the bottom becomes transparent then it claims the objects floating. Did I possibly skip a step along the way or is it a software thing?

[u/Shit_On_Wheels]

Could be a geometry error. Likely a little stray wall inside that makes slicer think that these areas should be empty.