Cottage Living Glitch-Sims stuck in one position

Did the Sims react in any way, maybe by waving their hands around with a question mark over their heads? That would mean their path is  blocked. I had that happen on a lot in Henford out of the blue for a room that was perfectly fine until my Sim decided it wasn't and that the path was blocked, which it wasn't. I've had that only on that one lot, so maybe that's part of your problem, too. Also, not all packs work together smoothly.