[FIXED] [DU] NPCs stuck as "Graduate" after graduation after moving in/playing

Just thought I'd pile on to say that this is also happening to me. My CAS-created sim met a cute NPC boy in college and when she graduated, moved into an apartment in San Myshuno. Once moved in, she decided to have him move in. Although he's completed all of his credits (with a great GPA, wow!), his graduation has not been scheduled. Like the others in this thread, the panel says "This sim has graduated. No More terms to attend", but he has no diploma. He cannot re-enroll through traditional means. They were both Britechester students, and although he was at one point a roommate of my CAS sim in college, when she graduated, he wasn't any longer for whatever reason (guessing the game just generated other NPCs it wanted to use).

If I click on the auditorium, there's no indication that graduation is scheduled at all.

It's been around a week of in-game time since I moved him in. I thought, hey, maybe the "graduated!" notification was being slow and would pop up eventually. It hasn't. I haven't tried any cheats or mods yet to fix it, but I'll do that next and see if I can resolve it.

Update: okay, had some luck using the AllCheats mod. Looks like it's fixed for now? I'll keep an eye out for weird crashing.

Update2: Spoke too soon. Looks like my save is completely ruined now... 😞 This sim was also a secret society member and was being tortured by sprites, so I tried the fixes on the sprite-related issue to try to fix. Not sure whether it was the fix for the sprites or the graduation bug that caused the problem, but now the save is crashing on family load. Attached last exception and error code for future reference.