@zeetopia You can try adding your cc back in batches, testing after each one. As long as you don't get any glitches (be sure to play through the birth, or another point where you remember the game was glitching before), you'll know that cc was fine. Any batch that causes the glitch again needs to be split and retested until you find the problem file(s). Here's a complete list of everything in your user data folder, so you'll know what to move over:
https://sims3.crinrict.com/en/2011/01/faq-user-files.html
While testing, be sure to delete the five cache files in the Sims 3 folder each time you quit. They should be deleted regularly anyway, and definitely whenever you add or remove content from the folder. For reference, these files are:
- CASPartCache.package
- compositorCache.package
- scriptCache.package
- simCompositorCache.package
- socialCache.package