Pedro Henrique Lucas

Same thing happened here, it disappeared at the same time my helmet broke, it was brand new.

"Enderman on fire also now behave the way they do when it is raining - they teleport like crazy. I figured Enderman would freak out when on fire and teleport all over the place. I know I would."
Maybe they are teleporting too far away from the player and forget about him/her?

I can confirm this.
Especially annoying when there is much flood in the chat.