Originally Jack Russell's father Gregor was the one who cursed his bloodline with lycanthropy when he read the Darkhold.
When did they retcon it that Jack's father was really Gregor's son instead of Gregor himself?
If Gregor is now Jack and Lissa's grandfather and he's cursed the whole bloodline...then Jack and Lissa's uncle/stepfather Phillip must be a werewolf as well right?
Not sure when but it is all to do with Marvel's sliding timeline
Rachel Van Helsing from Tomb of Dracula was grand daughter of Abraham Van Helsing, and I think it was changed to him being her ancestor which is more oblique then grand father.
Much like many classic stories that actually reference what year they are taking place in are now altered due to the sliding timeline