I believe this is what happened (which I just experienced in game): Started a Dinner Party and it began just fine. Within a few moments all sims on the lot will reset to a short flashed T pose and stop what they are doing. The Dinner party reset with goals and music as if it was just starting but no matter what my sim did the goals would not complete. Ended the party early then sent sim to bed. The next morning the Dinner Party event randomly started again along with a key-holder event on top of it. Both events ended after just a few sim minutes and no goals were met.
I have no CC or mods of any kind in my game. I update automatically and repair game regularly along with deleting cache files. This EP is just completely infested with bugs.
My report is along these lines, but a little different...
Parties do not finish properly, if at all...
@IronicBeauty do you have a save game with this going on ?
Added
I see this topic is still open.
I bought the Sims 4 upgrade for City Living at the start of Oct and it's updated once since then.
Issue: Self Hosted events popping up suddenly all by themselves but without advancement.
First time it happened I hosted a dinner party of friends and co workers (to make friends with them), the entire party ended as soon as it started and it told me that I had earned a slightly used book and all my guests left. A few seconds later the party popped up again, but only my friends came back and I couldn't fulfill any goals on the list.
It's happened about six more times since then, including just now.
I threw a birthday party for my co workers, cleaned up and went to bed. Then the party started again, and only my friends came for it, while my sim was sleeping. The interactions popped up again, and I couldn't do any of them (greet guests for example).
Also, at the latest one, I hired a caterer, a mixologist and an entertainer. The caterer did great, you couldn't order drinks from the mixologist although she stood by the bar the whole time, and the entertainer never showed.
Yesterday the party respawned over and over, so I backed out to the main menu to get it to stop.
I've also closed the game down completely and restarted to see if that would help.
Stats: One female sim, social media career path, living in the haunted/quiet apartment in the Arts District with the aspiration of City native.
