Behemoth FATE

[Kuroi_Tsuki]

It was quite fun thing to do and it was awesome, until Behemoth just randomly started disappearing from my screen. During this FATE, for me he stayed invisible more than not thus making it impossible to target him and do some damage.
Video: http://youtu.be/eHiBtUSMBOM
It doesn't look like actual mechanic since it stays invisible for too long and people actually damage it while I can't see it.

[Iskander]

This is a widely known issue now. It's due to an error SE made when creating the prioritization for rendering. Currently, monsters/bosses are near the bottom if not at the bottom of the prioritization list. From what has been noticed, the prioritization for rendering is something like this.

Egi's/companions
mounts
other players
attack/skill animations
mob/boss attack animations
mobs/bosses

a couple of those items might be one place off up or down, but mob/boss places are pretty much accurate.

[Kuroi_Tsuki]

This is kinda weird. Egi's/companions and mounts before boss hardly makes any sense to me. Boss should be higher on the list for sure.