Sim doesn't interact with others and instead starts dancing/twitching

I have the same issue, no mods, no CC, I tried repairing the game, uninstalled it, installed through EA, uninstalled, then through Steam, started completely new save in Documents, used a save from a different computer where the game is working fine, waited for multiple updates, nothing is helping. Only when I am disabling a whole bunch of addons and packs, all the way up to Eco Living, it is working. So something is there in these packs..