Solved
Path blocked by an invisible objects
Pathfinding issue after the latest patch. Sims used to pass this area normally. Now, an invisible object blocks the path. The Sim does the 'route blocked' animation, but with an empty thought bubble....
DarkerGodzilla One way to get rid of invisible objects like what you've got is to move the household out and keep the furniture. Of course, the downside of doing that is that you have redecorate the place. Another way is to replace the lot with an earlier version that doesn't have the problem if you saved the lot to your Library. And finally, if you have a save from before the problem appearing, then you could copy that lot to your Library and replace the lot in your current save.
Hope this helps.
