Discover University Stuck Gameplay

I have an issue that is kind of similar to this thread. I have my pre-save sim enrolled in Britechester, living in a dorm. I could play several semester without issue, but the day before graduation it started crashing. The game freezes during an interaction and it is not possible to cancel, debug, save, close the game. i can only exit the task to shut the game down. Started happening as soon as my sim was ready for graduation. I have taken to saving every 2 in-game-hours, maybe I will get to graduation eventually...