I've been having sims working on leveling their skills, and when the bar maxes out it just keeps going. I've had logic level 5 at 232%, and it stays there no matter what I do. I've tried doing other skill building activities, and the other skill works fine, but the game keeps the first skill highlighted and at the over 100% mark until I leave and re-enter the game. Even while sleeping the sims is still 'leveling' the skill. I can't save the game when this happens because the game says a sims is aging up whenever this happens. When I exit and reenter, sometime it goes fine, and sometime it happens to different skill on a different sim.
(fully patched, no mods)