please fix the trial of chaos!

First of all i cant progress because the monsters spawn ON TOP of the platoon that takes me up to the next phase and i cant kill them. It is incredibly irritating and i have lost incredibly manuy inscribed ultimatums to this.

second of all, if the bug does happen so that i cant progress i cant just get out and start again because the portal also is bugged! i have to wait for around atleast an hour so that the portal closes and i can put in another inscribed ultimatum.
It says something like "this subarea does not exist" and doesent let me put in a new inscribed ultimatum. INCREDIBLLY irritating.

please fix this, thanks.

I'm pretty sure you can go up with Blink (spirit gem), because it's a teleportation.
So until it's fixed, try keep a blink in your inventory just in case it happen maybe ?

Like a temporal soluton.