Comment # 12 on bug 1103835 from Frank Kruger

(In reply to Sebastian Kuhne from comment #11)
> After the update to TW 20180829 the same issue appeared again. Only "zypper
> in -f gsettings-desktop-schemas" did solve the issue.
> 
> Is there someone which could fix that?

Since I am a mere user, we have to wait for the maintainer/developer to step
in. For the time being, however, could you i) force to reinstall the
gtk2-/gtk3-packages that were updated with TW20180829; ii) provide "echo
$XDG_DATA_DIRS"; iii) if the issue appears, please apply the above-mentioned
workaround and provide "echo $XDG_DATA_DIRS" again. Thx.