Compiler Going Completely Immune to All Damage

Hi all, unfortunate I am making yet another Cryo Archive bug report but alas.  I was taking two friends through Cryo Archive and we had some good runs and decided to give the Compiler a whirl as they have never cleared it and I have, and I have been saving DNA cards to use.  We get to the fight and do everything pretty smoothly, until we notice in one of our damage phases the boss remained in the "cloak spread out form" and skipped the damage phase.  Weird, but we moved on and adjusted to set up another damage phase and when we got to this one, we noticed the boss was still in this form and unable to take any damage.  I was even able to walk up to it and knife it, I got hit markers and all.  We were forced to take the emergency exfil, and we were all pretty bummed out.  After watching the footage back, it seems like the boss does do the death animation (unsure if it even was the death animation?) in our second damage phase, but ultimately remains alive.  Provided is the clip including our second dps phase, third dps phase getting skipped, and then the fourth dps phase going infinitely but the boss was unable to be finished.  The door into the next room remained shut, and the boss seemed to totally just shut down, shooting the floor and being unresponsive to nearby players.  

This was absolutely crushing for them as the past few weeks our Cryo Archive runs together have been brutal, and so finally getting them a run good enough to get to and fight the Compiler felt incredible.  My friends are pretty crushed about this, their first experience with the boss was completely ruined and stolen from them.  

I tried to embed the video but it did not allow me so the video is uploaded to MedalTV, if this recording does not work please let me know of another way I can provide it.  

https://medal.tv/games/marathon/clips/mFiRAUwCrMIjPb16e?invite=cr-MSxjdzEsMzg5NjMzMTg2