EDIT: I fixed the problem, after a painful day, I found that the culprit was two loose script files I accidently made...

Alright, I installed Dawnguard to give it a go, everything was working fine, I got through some of the vampire faction quests, got Vampire Lord form. Everything was working fine.
So out of curiosity, I loaded up Dawnguard into the creation kit, and started poking around. I opened the DLC1PlayerVampireQuest, quest, and I was looking in the scripts and looked at the properties of the script DLC1PlayerVampireChangeScript, and I saw a property that read: CrimeFactions.

I thought that might have had to do with NPCs attacking the Vampire Lord on sight, so I wanted to toy with it and I cleared the value in that property. An error came up, I don't remember what it was (it was really late), though I think it mentioned compiling of some sort. I ignored it and made a new esp to see if what I did worked. And when I got into the game, I tried to change into Vampire Lord form and well... this happened: http://www.youtube.com/watch?v=g1G-P-Psnbs&feature=youtu.be

So after that I removed the esp, and the bug still persisted. I tried reinstalling DG (by deleting the Dawnguard.esm and the Dawnguard.bsa, and then steam automatically downloads it again), and that didn't help. I even tried reinstalling the Syrim.esm, and the misc.bsa. And even after all that the bug still persisted. I have no clue what to do, and would very much appreciate assistance.

Note: I did not save at all during this process, I used my save from before my opening DG in the CK. I even tried reverting to a previous save, and adding the Vampire Lord power via console, and it was the same bug.




Even after completely uninstalling skyrim and reinstalling it... the bug persists, and even after creating a new character to try, still does not work.


I've looked in my Papyrus log and found something I think is relevant to my bug. (Yes I have been at it all day)
But I don't know what to do about it, I tried adding those properties it says is missing, but I haven't got a clue how.

[08/04/2012 - 05:53:07PM] VAMPIRE: Casting transformation spell on [Actor < (00000014)>][08/04/2012 - 05:53:07PM] warning: Property DLC1PlayerWerewolfSavageFeeding on script DLC1_QF_DLC1PlayerVampireQues_010071D0 attached to DLC1PlayerVampireQuest (020071D0) cannot be initialized because the script no longer contains that property[08/04/2012 - 05:53:07PM] warning: Property WerewolfFeedPerk on script DLC1_QF_DLC1PlayerVampireQues_010071D0 attached to DLC1PlayerVampireQuest (020071D0) cannot be initialized because the script no longer contains that property[08/04/2012 - 05:53:07PM] VAMPIRE: Starting change anim...[08/04/2012 - 05:53:07PM] warning: Property DLC1VampireChangeEffect on script dlc1playervampirechangescript attached to DLC1PlayerVampireQuest (020071D0) cannot be initialized because the script no longer contains that property[08/04/2012 - 05:53:07PM] error: Method GetAlias not found on tweakdfscript. Aborting call and returning Nonestack:

I just don't get it, even if I somehow modified the scripts, simply verifying the game cache should've fixed that; and hell, reinstalling definitely should've fixed it... Surely someone has even the slightest idea? Any suggestions, please.



Ran another test one more time, here's another log for good measure:

[08/04/2012 - 07:06:44PM] VAMPIRE: Casting transformation spell on [Actor < (00000014)>][08/04/2012 - 07:06:44PM] warning: Property DLC1VampireChangeEffect on script dlc1playervampirechangescript attached to DLC1PlayerVampireQuest (020071D0) cannot be initialized because the script no longer contains that property[08/04/2012 - 07:06:44PM] VAMPIRE: Starting change anim...[08/04/2012 - 07:06:44PM] warning: Property WerewolfFeedPerk on script DLC1_QF_DLC1PlayerVampireQues_010071D0 attached to DLC1PlayerVampireQuest (020071D0) cannot be initialized because the script no longer contains that property[08/04/2012 - 07:06:44PM] warning: Property DLC1PlayerWerewolfSavageFeeding on script DLC1_QF_DLC1PlayerVampireQues_010071D0 attached to DLC1PlayerVampireQuest (020071D0) cannot be initialized because the script no longer contains that property[08/04/2012 - 07:06:45PM] error: Method GetAlias not found on tweakdfscript. Aborting call and returning Nonestack: