Solved
Sims 3 AI bugging out.
The problem: I recently decided to start up a fresh game of The Sims 3. After creating my sims and moving into a household, I bought all the furniture I needed and did all the prep work. Then I noti...
Try resetting your user files as described in the factory reset described in this post: http://answers.ea.com/t5/The-Sims-3/FAQ-Troubleshooting-Steps/td-p/714/
You won't loose anything. Just make sure to not delete any files and make a backup.
This will reset all your user files not just remove cc/mods. It's also different from uninstalling unless you already completely got rid of the folder before.
