I'm not sure if this is a game corruption or not, but invisible sims doesn't cover it. I've checked your site Crinrict, thank god for that, and checked the forums on the Sims 3 site. To no avail. Here, I flipped through the how to post and how to help helpers and even the known issues but nothing. I do like all of your links but I think you should mention the underground bug. It's corruption with clothes I think. I have a sim who both times I've come into the game has appeared underground. I'll see her thought bubbles popping out of the ground and stuff like that. I can move her, talk to others but can't see her. It's strange. I thought it was me logging in before I started playing but it wasn't that. I tried deleting my saved game. That didn't work either... So I read up and found an idea about clothes. I would make sure to link or mention Sims underground as an issue that's being worked on or that's been mentioned because all of those links don't lead to a solution for that. I've checked most of them before from the sims 3 forum ;] I might make a thread instead of bumping up this thread but I just wanted to let you know that there's a possible clothes corruption (it's supernatural pack stuff as well) and that it's different then all of that.