I'm adding this myself because it's been a long standing issue for months now. Whenever you killed Edgar Hirst he would stand frozen in place and eventually disappear, much like the Werewolf does. I found it was a corrupted .phy file attached to the model, so I got it from the original .pak files, renamed it, and boom it took care of the problem. Now I can use the custom Edgar skin instead of the standard Elite_Vampire_Hunter skin. I'm so excited I fixed this tonight!