Free Vacation with Generations
My adult sim was offered a free vacation (2 sim days long), so the teenagers can have a party whilst they are away, all went well the adult went away my teenager had a good party. However at te hend ...
Forum Discussion
This happens due to game corruption. Read through this post: answers.ea.com/t5/The-Sims-3/FAQ-Savegame-Corruption/m-p/968290
There are a couple of glitches that sound like they match yours. Try the work-arounds for whichever seems to match best. Good luck.
