Just had a sim age up from a teen to a young adult. No notification popped up to select a new trait so they are stuck with 2 traits still when they should have 3. Additionally, they graduated from hi...
Ideas
Also having this issue (25/11). My teen sims in my current save aged up with no pop to choose a trait. My save from June doesn’t have this problem, though. But if I create a new save right now, I do have the problem.
The only way I was able to fix this is by saving my sim to the gallery and then downloading them again to house. It's not a actual fix but it lets you continue with the sim at least. I just redid their appearances so I didnt have twins walking around lol. I hope that helps!