[LS] Cupid Corner Sims revert in aging

I have the same issue. Sim (probably from Cupid's Corner, I can't actually remember now) is an elder but after switching households to his adult children and then back to him, the game is showing him as a YA (but with grey hair), still getting the +40 uncomfortable debuff from doing exercise like elders get, and that he's 32 days from aging up to adult. Resetting him didn't work; CAS correctly shows him as elder when I go there, but then YA again when I go back to Live mode. I tried forcing him to age up to see what would happen and it immediately said he's dying of old age. So basically yes he's still an elder in game terms but looks like a YA. Next I'm going to reload and I guess just leave him be as a "YA" and see how long it'll take him to die.