I have implemented a custom werewolf race. I gave it a custom feeding perk that was a copy of vanilla werewolf feeding perk. The race had its own transformation quest separate from vanilla werewolf transformation quest. All was well. My alpha werewolf could feed on NPC or animals. Recently I obtained Dawnguard and came to conclusion that with Dawnguard activated my custom feeding perk stopped working. So I tried coping feeding perk from Dawnguard but its still not working. When I activate the body its inventory opens. In addition I can now pick up plants and fishes. Anyone has any idea whats happenning?