Olroth Tier 2 instance crash?

Bug Report ID: #3689572713

Hello,

today the exact same thing happened that also happened yesterday. i ran t2 olroth (100 splinters) and after he was 0 hp instantly, he regains health and spawns adds. as soon as i could damage him again, the instance crashes. i play coc lightning warp and trigger it with ball lightning. hope this helps :)