aschaenz

I have solved the problem with the following instructions (thx to AI):
 sudo nano /etc/polkit-1/rules.d/49-desktop-bypass.rules            Paste this exact configuration rule into the text editor:
 
polkit.addRule(function(action, subject) {     if (subject.user == "<userId>") {         return polkit.Result.YES;     } });
By explicitly declaring that your primary user account <userId>  is trusted by the underlying polkitd architecture, the system settings and the Discover store will instantly clear the action without demanding the bugged KDE graphical authentication prompt to draw on screen.
Try opening your System Settings now to see if they open cleanly. If it's still locked up, run this command and paste the errors it gives you:

• journalctl -b | grep polkit

That will pull the exact system log showing whether it is a session ownership issue or a library failure.