JordanHanlon444 Do you have anything like OneDrive or iCloud running that might be moving files on you? I just downloaded both that creator's Shabby Chic dining room and all of Tiny Twavellers and put every item in my test Sims' home, and I was able to reload the household fine.
Try this:
- Rename the whole user folder (Documents > Electronic Arts > The SIms 4)
- Start the game and exit
- Copy your old saves into the newly created folder and try again (Exit without saving)
- Copy old mods into the newly created folder and try again
I'll note that we've seen issues before with TSR-created resource.cfg files. When you let the game recreate the user folder or mods folder, that gets replaced by the game one.