I noticed in my last playthrough (patch 7 but a few weeks ago now) that Minthara’s background didn’t show on her character sheet, though everyone else’s - including Astarion’s - did. She did still pick up inspiration points, though. I’m not sure if this could be related.

"You may call it 'nonsense' if you like, but I've heard nonsense, compared with which that would be as sensible as a dictionary!"