First it happened yesterday when I used a disguise while questing and then it was back to normal after I unequipped the disguise. Today it has changed after porting to another zone and now it stays like this, I restarted the game but my char still doesn't look like a vamp anymore. Might be related with the outfit system issue, because now outfit 1 is also selected even though it should be "no outfit".
My char wears a costume and it doesn't look good with green scales, I'd like to have my vamp skin back X)