Mythic firefight boss glitched in mountain

So I was playing warzone mythic firefight. Everything was going smoothly. We had killed all other bosses on round 5, but 1 banshee boss somehow ‘escaped’ from the map. He was either inside some scenery (like a mountain or something) or behind it. But my point is that we couldn’t shoot him nor find a way to get to him. And so we lost the firefight. Please fix this issue.

Ps: I’m pretty sure that I’ve recorded it but I’m not sure how visible it is that you couldn’t reach him.

Well if you recorded it, why didnt you link it? Save people the trouble of commenting just to tell you to post a link to the video of the problem in question.