This issue has been going on for a while now. I have never figured out why sims just freeze in place while the game clock just continues on. Normally what I do when my sims and the NPC sims are stuck in this situation is that I use the resetsim cheat to get them unstuck. The cheat it's self is as follows "Resetsim sim's first name sim's last name". This normally works in getting the stuck sim unstuck. And repairing game through Origin doesn't seem to fix the issue. At least not for me because I have tried that several times to fix the issue.
