I could see the force powers, but they would not highlight so I couldn't pick em. It worked ok when i just changed the npc's first class to a jedi one. multiclass didn't work though. I did only try candorous and Jolee.
Don't worry about the saves getting corrupted.
I should have backed them up. it's ok any I still have atleat 6 clean saves and about another dozen others.
that was the only new feature I tried, After that happend I thought It best to not push my luck any futher.