The bug itself has been fixed but affected games can't be saved.
It might work though to save on a full moon between 5 and 9 pm again. Maybe that remedies it.
If not, save your family to the library via edit town and move them to a new game.
This is still happening in 2018. I thought the bug had been fixed??
@kendalldant There are still plenty of bugs in TS3; I'm not sure if this one is completely gone. (Of course, if you have a disc install, you'd need to patch the game to get whatever fix there is.) Have you tried the suggestions described above by crinrict and rumbutter? Those are a good place to start.
If none of that helps, please post a description of exactly what you're seeing in-game, as well as what you've done so far to try to fix it. You could also start your own thread, if you'd like.
