I keep having the massage invalid round room showing up when I try to apply wallpaper to a room that is not even round. I deleted all the round rooms that I used in the build but the massage still shows up and I can't continue building.
@Alumina-Pandora Sorry for your frustration! Unfortunately, I couldn't reproduce this in my game, so I'm wondering if you have Mods or CC? If you do, you could test without them (and by removing the named cache file) to see if the issue is gone as follows...
Exit the game. Move the Mods folder from your "The Sims 4" folder [Documents > Electronic Arts > The Sims 4] to your desktop (save it for reference) and delete the localthumbcache.package file in your “The Sims 4” folder. Then check in a new game save to see if this issue is still occurring.
You can test without saving in order to identify which CC/Mods are causing the issue. Then remove or add updated version(s) of the Mod/CC causing the issue.
Same, I tried doing the instructions set, but I can’t delete the localthumache.package for some reason. It says it’s already open the Sims 4 application. Please help me 😭
