Generations Bug Thread - Please see compiled list on first page before posting.

All of my sims just can't throw a successful party... Things like that, everytime I threw a party, firstly, my sims would become invisible, although they would appear again after a while, no guests attended the party... What's more, they all have got the Life Time Reward, Legendary Host.
My system is win7, and I have all the EPs&SPs installed but without and modes. So I'm not sure which one causes this issue, however it had never happened before I installed The Generations, Outdoor Living and Town Life .