Skyrim Vampire- Can't feed on awake NPCs

[Undead2117]

don't really know if this is the right place to ask for help about this, but ♥♥♥♥ it, so i'm playing dawnguard right? and i decided to go vampire route, all is well,
until i reach the "Prophet" Quest, you know the one that involves bringing the piece of ♥♥♥♥ Moth priest (Dexion Evicus) back to the lair to read the Elder Scroll
and that's where I reach the roadblock, in order to brainwash him you have to beat him into submission then bite him, using Vampire Seduction, to continue the quest... and i can't

am i in human form? check,do i have Vampire Seduction? check, i approach the man, i use the spell on him, yet i can't even talk to him,
when i activate him, he just does the usual spiteful dialogue but never giving the option of [FEED/TALK], i thought this was a bug solely on Dexion Evicus, and then i went out and tried the spell on other low level people to find the same result, i cast the spell on anyone who is awake and the game just acts like nothing even happens, no option to feed on awake people (BUT feeding on sleeping NPCs works totally fine and normal)

i thought it would be a mod problem so i unticked the few vampire mods i had but to no avail, hell i even downloaded mods that extended level cap for the Vampire Seduction, again, nothing

i should also point out i downloaded a mod recently called "Better Vampires" it semi fixed the problem, it allowed me to feed on living people, but when i returned to Dexion Evicus to feed on him, the game just didn't even recognize it as official, and he's back to saying his normal lines like nothing even happened

i'm drowning in depression from this first world problem, who can help me?

p.s these are the vampire mods i'm using
-sOy's Vampire Lord Perks
-True Vampire Lord
- Vampire Clothing Bug Fix
- Vampire Seduction- more seductive please
-Better Vampires 8.1
- Vampire Lord Retexture

[Jjp7123]

I've had this bug before. This bug usually happens with vampire overhauls. This bug sometimes also happens with custom races because their races aren't registered in the console. Disabling all vampire mods usually fixes the issue. If your using a custom race, you have to go to MCM, go to Better Vampires, and reset your sanguinare vampiris in order to feed properly. If that doesn't fix it, open the console and type "setstage DLC1VQ03Vampire 70".

https://www.youtube.com/watch?v=vHTJOK81Wjc

http://en.uesp.net/wiki/Skyrim:Dawnguard_Quests

[TheDemonKing]

True Vampire Lord is a pretty dead mod and could be causing the issue.
That or the Soy Perks.

I know for a fact that Royal Bloodlines Perks are compatable with the major mod your using, Better Vampire. ( Im using RoyalB lines and highly recommend it over Soys)

I do not know if Soys Perks and True Vampire (dead non updated mod) are compatable.

Try to swap the mods.
Use Skyrims Savetool.exe to clean the broken scrips the old mod left.

You may have done too much damage to your game already via scripts so you might have to Restart your game if you are so incline to play as a Vampire.

Always do research on mods and try not to use mods that havent been updated withing a year.

That mod your using was made in 2012 and updated in... 2012.
its almost 2018

Edit: Some mods are Completed and therefor dont need ot be updated lol So check for that too.

[Trehek]

Try to cast the spell and activate Dexion while sneaking and behind the target, if you haven't already. It probably doesn't work on awake NPCs who are aware of you with those mods.

[Undead2117]

cheers for the feedback guys