I have installed plasma 5.9 beta and kept repositories. System automatically updates plasma to 5.10. There’s problem with clipboard - gnome-software complains dataengine-org.kde.plasma.clipboard is missing. After downgrading to plasma 5.9 stable error is still displayed. Clipboard history doesn’t works.
Just disable all non standard tumbleweeed repos you have and leave enabled only default repos then in terminal do zypper dup.
I had the same idea, but I was scary codecs will be broken in this case(I use packman and vlc repos).
Klipper now works. I can use QrCode too. Thanks!