Hello all. Been having this problem lately. Every 5 or 6 times I login to Zorin 16, itll ask me twice, and when I finally get in, my GUI is all different. Restarting solves is, until more recently, where I have to change my settings back to the way I had it. Getting frustrating.
Sounds like a profile or xorg issue, Can you check the xorg log in
~/.local/share/xorg/
maybe attach it to the thread is possible to see if xorg is crashing and resetting the theme