So I followed the Dawnguard quest line and finished it....When I first had to enter the Soul Cairn I chose to become a vampire to enter...Once I had retrieved the item I needed from the Soul Cairn I then had to get my vamparism cured so that I could finish the Dawnguard quest line. But now that I have finished everything I want to go back into the Soul Cairn, but it won't let me. I thought it would be because I'm not undead so, I just told Serana to make me a vampire but I am still unable to enter the Soul Cairn.

Anyone know why and/or have a fix?

Exact same problem I have.

me to