Lags & Invisible, Frozen & Stuck Sims --> Post here if you have the issue.

How is this not fixed yet? I only have the base game and Ambitions, no CC or anything that didn't come on the disk. I have a lot of townies just stuck out there, unable to be interacted with for opportunities and stuff. I also get family members turn invisible and become unplayable. This seems to happen more in a multi-story house. This isn't a little bug you can play around.