Re: [OPEN] [DU] Graduation Hat Stuck
I had a similar problem when I was playing siblings that went to different universities. I attended the ceremony with one, loaded in, she had the hat on, but then the ceremony at the other university started so the game loaded in there instead. The result was that the sim that I did not see come out and throw the hat off was stuck with the hat, as described. I was trying to get both of them the graduation picture, since you get it only if you attend the ceremony, but clearly can't attend it in both, so in the end I loaded an earlier save and chose which one gets to have the picture.
So clearly if the player chooses to attend the graduation ceremony, but for whatever reason won't witness the sim coming out and throwing the hat off, the hat will be stuck.