Done Witchery Vampire Blood on Skull Ritual Glitch

I noticed that there is a Glitch the Vampire Ritual where when Elle spawns she dies, can there be a different way to get her to not die implemented?
All help is Greatly appreciated,

 

Where are you trying to perform the ritual? That may have something to do with it.

 

I tried to help them and built the ritual myself and had the same problem so what I did was captured the follower the second it spawned with a soul vial and used it to make an ender Io spawner and it worked.

 

Thank Here_To_Kill360 for the help