I don't know if this has been reported but when clicking on the relationship panel of my sim there's a red space where there should be the rest of their known sims. After that they can't use the cellphone and sometimes you can't click off them because, when you try to it just highlights the other sims in the house. Usually, when I get this error I just leave without saving but it seems to be happening when I don't control the house. I tried uninstalling and resetting the sim but no change. I would kill them but you know...the children.