[CentOS] Asking again: CentOS 7, KDE, logout needed twice

Wed Apr 15 16:10:38 UTC 2020
mark <m.roth at 5-cent.us>

Every single time, no matter if I chose leave->logout from the start 
menu, or from ctrl-alt-delete, it does *not* log me out, but restarts 
KDE. The second time, doesn't matter which way I go, it *does* log me out.

Anyone got a clue? Googling hasn't found anything....