Newer user, running Manjaro KDE but posting here because I thought this would have more to do with KDE.

Whenever I logout, and log back in my notifications/system tray icons get very small. Then on second logout, the desktop workspace disappears and it opens all apps i had minimized, and does not display their titlebars so i can't click to close them. No keyboard commands seem to work either so i just forcibly shut down my system by holding power button. Fun!

Things to note:

- I have a 4k display
- I recently installed a KDE plasma theme by following this popular youtube video https://www.youtube.com/watch?v=86ro5Q0Fi34
- Ran into an issue with Yakuake dropdown terminal not being centered on my 4k screen - it was pushed to the left side of the screen. I read some posts which led me to mess around with QT_AUTO_SCREEN_SCALE_FACTOR, PLASMA_USE_QT_SCALING, and /etc/sddm.conf
- I was not successful in fixing the Yakuake bug, but i was able to right-align my top panel instead of center, and that allowed yakuake to work so i was content with that workaround. I'm not sure if i reverted all of the scaling commands back to their defaults. I kind of rushed through it like a noob.
- I also don't know if any of the above had anything to do with this logout bug (because i don't typically logout - i just reboot and lock the desktop - its only logout/login that makes it go berserk) but i noticed this bug after making some above changes and im not sure if the scaling factor changes anything to do with this logout bug but i thought it would be helpful to mention because of the small scaling of icons on the first logout before it crashes completely on the second logout

Anything I can check, post, or revert to default to try to get my logouts fixed? Thanks!

exact Plasma version?
What did you change before logging out?