Solved
Blank Thumbnails on all DLC items in CAS
I don't exactly remember when I first noticed this but, when I got the Holiday Celebration pack, the thumbnails for all the CAS stuff were blank, as if a white box was put over them. When I started t...
Do you have any Mods or CC? If so move your Mods folder to the Desktop and delete localthumbcache.package. Then test the game.
If it works now check for updates to your Mods and CC. Add it back a little at a time while testing until you have found all that are broken.
