I got stuck with that issue and maybe this will work for you. I did the clean slate LTW and then switched active household for a while and the glich went away. I also delete my cashe package flies every time I play. It cleans the game without deleting anything in the game. Every time you start the game it will generate new files when you delete the cashe pakage files. See here about deleteing cashe files.http://simswiki.info/wiki.php?title=Game_Help:Sims_3_Delete_Cache_Files
Edit to Add, after I switched active household I think it took around 5 sims days for the glitch to go away.
