Thanks, bubbel! Could you please be more exact in your wording? There are no such places in Tasma.
We haven't yet pinpointed the problem, I suspect: I'm just trying to follow the usual KDE routine, but it won't wash...
I've had this problem on another distro: it's xorg/hotplugging related. Using Evdev-managed keyboard should do the trick, but now it does not .