Enemy spawn in chaos ascendancy trial issue.

In the chaos ascendancy trial (the trial with the vaal cores) i keep having a group of 5 enemies with spears spawn encircling me so I cant move and instantly kill me. This has happened a few times. I also keep getting killed in the trial by nothing, my health just drains in about .1 of a second while im immune to bleed and have 20% chaos resist. I have no effect on me, there is no indication i have been hit by anything and there is no enemy on screen most of the time when it happens. Using a health flask does nothing even if I used it a fraction of a second before it happens. This trial seems unfinishable to me in its current state. I should at least be able to see some indication I've been hit or been afflicted with a status effect but there is none and the health drains far faster than any other status effect in game. I am currently massively overleveled for this but again, it feels impossible with what I am experiencing.

You take damage/sec while carrying a Vaal Core - it's not 'nothing'.

The vaal core isn't what is draining my health in like .1 of a second. Most of the time this happens im not carrying a vaal core and everything is already dead. My health just plummets with no indication as to why while I make my way across the arena to the exit.
My problem with the vaal cores section is how enemies spawn in around me. I had 20+ times where they would spawn in a way that would completely trap me where I couldn't even roll out of them. Then there are the times where I got on an elevator with a vaal orb and it spawned the crested behemoth on top of me which bugged out the behemoth, the lift and me and caused me to get stuck and die. This is all while also being unable to attack the crested behemoth that's glitching out sat on my head. I could not attack or do damage to the behemoth. I wish I knew how to post pictures of it glitching out here