Aspiration trait broken
I finally finished the Creative aspiration today and my game told me to pick a new aspiration for my Sim which I did. But the new aspiration didn't come with the new aspiration trait. I picked Freelance Botanist and lo and behold I still had my Painter Extraordinaire trait instead of Collector. Also ALL of my reward traits have stopped working. I CAN'T EVEN use Expressionistic that I JUST earned! The options to complete emotional paintings don't show up. I've lost all reward traits I bought from the rewards store and the aspirations traits as well. Friendships are also broken and don't go past Impartial which I know it already a known issue. The game is completely unplayable now until all this is fixed. Sigh.
I'm going to lock this as it's become a bit of a mixture of unrelated things.
If you have the issue posted by the OP, please use this thread instead: http://answers.ea.com/t5/The-Sims-4-Bug-Reports/Aspiration-reward-trait-removed-after-aging-Sim-in-CAS/td-p/5164592