I don't know if this is a bug or intentional... Please take no offence to how I word this. It's that my mind is saying... why sims why? This is not meant to be a rant but more an observation on my par...
I got an ancient bloodline baby with one human female Sim and a male spellcaster. I was trying to create a single parent situation for a story and forgot the NPC was a spellcaster. I never wanted to play with magic again so I moved on after the baby aged to a toddler and looked at her info.