Low Aura of the Beholder DPM

Description of the bug: (optional screenshot/video): @dpm is not properly including damage from aura of the beholder or aura is not dealing damage everytime when hit as per the skill description.

What is supposed to happen?: Aura should deal damage equal to the amount of damage my dark knight took during a run.
Where did you find and/or notice this bug?: Over the course of a 45 minute run, my dark knight did no attacking, but maintained beholder up for the whole run. After dying once and nearly dying multiple times throughout the run as sed target, my dpm 45 on it came back with 4k damage done. It likely took over 200k damage this run if I had to guess.
A step-by-step guide to re-producing this bug (optional):
Extra information (optional):