Well now my game won't load at all after I press Start from the main menu. It's back to continuous loading. I turned off One-Drive and that seemed to fix the issue with my Sims Medieval, but now my Sims 4 isn't loading properly and there aren't any updated saves in OneDrive. I disabled that. It's like my game is broken. I've never had this kind of issue with The Sims 4, it always ran smoothly (well, with the usual bugs everyone has). I've repaired it several times and I even got the new Spongebob Bundle. Can't even play with it.
Update: I just tried to open the game in Offline Mode and it still won't let me play... This happened overnight. I was able to play for awhile last night but now, not at all. I got a weird little cursor too for some reason, like I could edit something or type while the game continuously loads.