No background changing over the folders

[cscs]

Cant reproduce.
If all else fails and things are ‘weird’ from the upgrade then make sure to ‘refresh’ the configs.

@cscs

cd ~/.config
for j in plasma*; do mv -- "$j" "${j%}.bak"; done
mv Trolltech.conf Trolltech.conf.bak
rm -rf ~/.cache/*
kbuildsycoca5 --noincremental

Do note this will reset most all desktop settings.