Problem with loading my save after the update:

emurray09  That depends on what kind of cc you use.  Can you split the household into individual sims and figure out which one is the issue?

Whether one sim is affected or all of them, I would still do the 50/50 method on your cc to see which items are necessary for the household to load.  It's useful information if nothing else, and you can make a decision on how to proceed once you know where the problem is coming from.  You might even be able to remove that cc from the sims, when you can load the household, and use other cc or Maxis items for now.

Once I find what CC is necessary for the household to load, would removing it make the household unusable? I guess that's what's throwing me off: the fact that I need the CC for the family to load. I can't figure out why a vanilla game would have the issue instead. Thank you again for your help! 

emurray09  The first step here is to identify the problem cc.  Then we can figure out what to do about it.  You might put the cc back and remove it from your sims, then remove the cc too, at which point the household would hopefully be playable without that cc present.  Or you might keep the cc as-is, or get an updated version of something that's not working as you'd like.

I've had this issue for months now and I'm pretty sure the bug is in the Daycare system. Whenever my toddler gets sent to Daycare because my other sims are traveling, I can't go back home (endless loading screen). When I reload the game I also can't open this specific household (another endless loading screen), but other families load just fine. Wanted to share my findings so the Sims team might be able to fix this.