I've seen this in my game since the last update much more than it used to show up but it's been around in my game for quite some time off and on. The progress bar over the sim's head seems to get stuck when full on some of the skills and seems to remain there even if you switch skills you're working on. The bar in the skill panel does seem to show the correct actual progress in the skill you're working on though. It does go away sometimes during play if you reach the next level or gain a level in another skill but mostly you have to at least go to manage worlds to get rid of it and/or switch to another household. Sometimes it takes a full game restart to make it go away. Also, it only seems to afflict only one sim in the active household most of the time but I have seen it on two every once in a while.
