From what you have said, this sounds like a mod issue. Probably a mod that got outdated by something in the new patch. A lot of mods did get broken this time. Since you use mods and cc, I suggest you check to see if any of your mods have been updated since the patch.
You can find the list of the broken mods by going here:
Then follow the link to Luthienrising's post over at the main forums.
A sure way to check if a mod is causing the problem is to start a new game with no mods or cc. Easiest way to do that is just move your "The Sims 4" folder to your desktop or another place out side of the Electronic Arts folder. Start the game and it will create a new "The Sims 4" folder that is clean. Create a new sim or family, put them on a lot and try to do some of the things that have been causing them to reset to the T-pose in your current save. If they don't reset when you do that, then it's one of your mods and you will need to find the one causing the problem.
Hope this helps.
Community Manager
