Bambu Studio UI stops responding after a while

Macintosh Mac Mini M1 from 2020, 8 GB RAM. Latest Studio 2.9.1.70. Printer is P1S/AMS 2 Pro but that is not involved.

Has anyone had Studio just stop responding?

Actually it’s just freezing on the build-plate part of the Prepare and Preview screens. The UI will do absolutely nothing after some conjuction of planets. It seems more frequent after I have moved off of Studio to do other work.

When it enters this state, there is absolutely no response whatever to clicking, dragging, wheel-dragging or anything like that.

However the Printer, Filament, and Process Panels are still responsive!

I can open a different project but the Prepare/Preview windows stay dead on the previous project. The Printer, Filament, and Process Panels will get the new project and you can adjust it!