Once in a while the menu is blank, i.e. the search bar is there but the rest is a big black nothing. When I logout (typing in the seach bar still works) and login the menu shows all icons again.
My computer is on KDE 6.05 Wayland. I have searched the system log but do not know what to look for.
I have found
plasmashell The cached device pixel ratio value was stale on window update. Please file a QTBUG which explains how to reproduce.