[COL] NPC roles assigned to multiple Sims (Sometimes duplictes)

I have not exactly the same issue - but suddenly the Sims from my current active household that I am playing are duplicating in game on public lots - I had this happend on two different occasions. My male Sim even had a conversation with his duplicate. It was a little bit irritating. I have all packs installed (since I own them all) and have no mods installed - the newest patch is installed as well. 

Another issue that I noticed is that I am not able to get the "get gift from father frost" interaction to show up (I just celebrated christmas in current save game - which was created before the new pack released but after the Natures Calling Event started) and I cannot not get the interaction for the heart-to-heart with the townies in Henford-on-Bagley to show up either. Also, while an event is active I am not able to play on a chess table that I placed on a custom-built lot - same goes for food stalls. And while I was in Brindleton Bay (in winter) in the Whiskerman Wharf neighbourhood the food stalls there had no vendors whatsoever - they never opened although my Sims stayed there for more then 24 ingame hours.