When I go to CAS and even just load into a world save, sims will show up with no clothes/hair and will just be red/white with ? marks, If I load a character from my uploads in gallery it doesn't happen but trying to make a new character or any characters that exist around the neighborhood will show up as bugged. I'm not sure which mod is causing this.
you should try the 50/50 method - remove half of your mods and load the game. If the bug is gone, it means one of the mods you removed was the problem. Keep doing that until you narrow it down.
NOT AN EXPERT
Yeah, I tried that and turns out there's multiple giving the same bug. So I'm just starting my modpack over, either way it doesn't really bug me since I use mod manager and can download stuff really fast from my favorite creators. Every so often I'll pop into the game and make sure there's no bugs with what I'm currently downloading.
Checkered sims usually means missing mesh or some skin CC conflicting with another CC .You can check custom content in CAS and save a household to library wearing the broken ones, then open it with Tray Importer;it will send you direct to the location on the broken CC in your mods folder so you can easily delete them one by one.
