In V1/2, the horned head's eye was lit, but V3 and on broke it. However, the NPC you see in "Claiming a Stake", which happens to be -exactly- the same as my cast has a lit eye. However, face northwest as a horned HUct, and you can actually see a little bit of this light.
I was wondering if it was possible to "restore" the eye light with some tinkering/model swap/ect. This obviously isn't important to the server in anyway, but I'm just curious why it broke. Although if you look closely at the lit horn's eye, you can sort of see through it, and the polygons vanish behind it.