@WendiAdrian What are you doing when it has a fit?
3.5.2 is one of the worst in my opinion. It has a copy bug which ranges from little freezes to full on Windows crashes for me. It can be triggered by doing any copy operation that is initiated by CTRL-C or Right-click >Copy (i.e. any text, any layer, a layout item, etc.).
Jumping between panes and windows also seem to break it after a while. I now restart Pro for almost every project I open. It runs OK but progressively gets more sluggish after a few hours open. My computer spec is not a factor.
I'm sure others will join in with recommendations for troubleshooting and deep diving into every aspect of your data composition, when last you reloaded Windows, deleting caches, updating drivers, etc.
To check if your hardware has issues throw LM Studio on and run a few models using GPU and CPU respectively. It can expose dodgy RAM, temperature instability, & other performance issues quite quickly.
If you have the, time fall back to 3.2 and see how it goes. 3.3 wasn't too nice for me either and I skipped 3.4 to get away from the license checking bug & pdf issues.
