Kelari's Judgement Instance Crash

I have a recurring bug where, if I hover Kelari's Judgment over a boss, the instance crashes.
It seems to only happen to some bosses, so far it only happened to Penitentiary boss (Act 1 executioner map variant) and the Frozen Chaos trial variant bird boss (Rakkar, the Frozen Talon in Glacial Tarn).

It seems to happen 100% of the time so the only solution is to not use that ability against them.