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
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!
Noting, it looks like they've removed the trait so this is no longer an issue on my end with new sims 😊