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
Update: the above also happened with non-adopted teens. They aged up without prompting for an additional trait, and no gained traits from childhood they should have had (eg. Happy toddler etc). Additionally and separately, one of my sims aged up autonomously, and aged up again immediately afterwards and likely would have died if I didn’t intervene by going into cas.