User blog comment:WayfinderOwl/Is there something wrong with my game? (Sims 3)/@comment-5248145-20140314150051/@comment-5248145-20140314180453

You don't need any expansion packs for them to move out because they don't actually move to another place, they just leave. I know that you said you turned off story progression as soon as you started, but I have had times when thing still progress even with it off. I don't know exactly why either. Maybe you an look in your game files to see where those sims are?