Hello,
I've played almost 100 hours and I've never had this problem. It started with one of my Sims getting stuck with Gobias right outside of the science building, and then she and her husband were stuck kind of half fused into their bed. Each time I used the resetSim first last and it worked a few times but they kept getting stuck other places. At one point I couldn't move objects in and out of pockets/ the refrigerator. Currently my female is stuck in the front hall (she disappears and reappears) and my male is stuck halfway into the wall of the house. I can't click on any other objects either. I tried to click on build mode but then the entire blue task/game bar at the bottom of the screen disappeared! I've tried resetSim, restarting the game itself, and restarting my computer. Nothing is helping. Any ideas? Thanks so much.