I got the ring of Hircine as a werewolf and was wearing it. I cured the lycanthropy and became a vampire. As a vampire I noticed I still had the ability to turn to werewold so i tried it and it worked, Afterwards my eyes went back from yellow to normal but I still was a vampire with all of the powers but now I am unable to feed off anyone in the sneak position so I am stuck as a stage 4. Kind svcks. Will have to reload and lose a couple of hours.