1. Havent experienced the first half but normal life span and aging off prevents the bug.
2. Only happens if your sim is on another lot and its time for them to be there. When they leave and you go back to your home lot and it acts like they went to said activity or work. If youre on your home lot its fine or if you have two sims on another lot and one is leaving somewhere with the other staying on that lot its fine.
3. Wasnt happening to me due to MCC even though i updated had deleted it entirely except for my settings and redownloaded and was able to have sims go to prom. Also deleted my localthumbcache as well which helped too. Dont have the problem in new saves or old ones.
4. Had the problem a few days earlier but seems like its okay wasnt sure if it had to do with sims being in big groups or otherwise.
Other than those havent experienced much of anything else.