The problem may be because of onedrive. You could try moving everything to your hard drive or SSD and disable the onedrive connection for The Sims 4 folder.
Hope this helps.
@CGrant56 Hey, I did that this morning because it kept linking to my one drive because I saw on this forum someone said that. I realized my game was doing the same. So I disabled the one drive, tried again and nothing :/
Now that you've disabled OneDrive, you can fix whatever issues it caused and then test CC. Start with a clean folder: Exit Sims 4 then drag your whole Sims 4 folder from Document > Electronic Arts to your desktop. Launch Sims 4 and start a New Game. Reset your Options how you like them.
Now try copying your most recent save to the *new* Saves folder and see if it works without the CC (but don't save!). If it does, copy the CC over to the new folder and test that. With some luck, you'll have cleared up the issue and won't have to do a 50-50.
And I remembered another thing to check (one I ran into myself last night!). Depending on how you moved your content between computers, you might have ended up with some script files having a ".zip" extension added to the end and messing things up for you. If you uploaded folders online then downloaded them, check for files ending ".ts4script.zip" and rename them to remove the ".zip" part.
