Broken Sims 4/CC

I've been dealing with a game bug for quite some time now, and haven't figured out what is causing it. The game runs fine until all sims are asleep and the time is sped up. Once it speeds up, it stays frozen at a certain time, but the movement continues in the background. At this point, nothing can be clicked on, and the game is completely frozen. I'm not even able to leave the game correctly. The only two mods I have are MC and UI. I tested the game without mods and CC and it did fine. I then added back just CC and it happened again. So I'm assuming there's some CC that's causing this? How do I find out what's causing this? If it is CC, how can I narrow down which one it is? I don't have a ton of CC but I'm lost.