Tasks for university club never fulfilled

Hi,

I'va had this bug for quite a while now and I think it started with one sim who moved out from her dorm and started living in a house I got from the gallery (no cc though). She was in the art club, not at the lowest level but not at the highest and the club tasks never got fulfilled ever since. 

Since then, none of my other sim can fulfill their club tasks, it just doesn't account for it. I tried repairing my game a couple of time but it didn't fix the bug.

I wasn't playing with any cc or mods when this started occurring. I play on PC.

Someone else with this bug?