Yeah, glad he didn't lose anything. I was going to have their vampire son turn after maxing a few skills, now I'm not so sure.
Edit: Well I had the female teach him Martial Arts and in one sparring, he gained 3 belts.
Edit: used the same sim (I keep a sleeper game for various scenarios) and had her become a vampire. I sent her to the Lab and she did not have the same vampire abilities as her husband in my other game. Maybe it's just NCPs. I'll try another game by having her ask Elvira to move in. Curious (though curiosity killed the cat).
Edit: Tried the scenario again and now the female is maxing as if she was still a vampire. However, I got a different glitch before turning her human. She went hunting on Friday and on Saturday one of the people she hunted showed up at the club still lit up as if she was being hunted. She stayed that way until Monday