To start with, I have restarted dawnguard several time, turned off all mods and tried over 15 times to fix this bug,
The bug: I go into Forbear's Holdout and clear the place of hostile npcs. I picked up the weystone focus and put into the source, after defeating the Enthralled Moth Priest I use vampire seduction on him, then I go to feed on him. NOTHING.. HAPPENS.. I keep feeding on him over and over and nothing happens.
I have tried to sleep/wait 24 hours over and over to get vampire seduction back up to try feeding again but it never works.. any suggestions?..