I switched from Plasma to Gnome this morning and ran into one (1) problem:
Every time I start the computer about one third of the icons on the dock are default icons while the rest is in the installed Icon Theme I’m using.
To get them back I either have to switch back and forth with any icon theme (all of them work when set manually) or force the computer to update the system in some other way (running pacman -Syu is enough for it to reload the icons correctly, for some reason).
Any idea what’s going on? I have tried to google it and I have found zero other people with the same problem.