Trials of Chaos round 10 vs tornado bird - crash after crash and then invisible boss/attacks.

I got this error message during one of the crashes. The game would immediately crash whenever I attacked the boss.



On my final reload I waited a while and ran around before attacking, however the boss then apparently became permanently invisible and I lost big chunks of HP constantly to invisible attacks until I was out of flasks.

And now the trial is bugged out, can't close the door, nor can I put a new Ultimatum in. Nor enter through the door obviously, since I died to the invisible fight.

Closing and restarting the game did not fix the issue, I can't put in a new Ultimatum. Looks like I'm locked out of interacting with the trial of chaos for the time being.

Whops, wrong token. But I get an error with the right one too.

Regarding the invisible attacks, I'm aware that the bird will for part of the fight turn into a highly damaging tornado, and I wouldn't be too surprised if he had a phase where he hovered out of reach and threw things down at me or somesuch, but I actually had no visible feedback at all for the majority of my HP loss. No impacts or sound or anything, just me running around in the arena in what looks like open ground and losing chunks of HP so big over and over that my very strong life flask with +20% instant from the belt was just barely enough to keep me alive (for a while).

Reached the last Trial and screen went black, Lost the trial on the last stage. Not fun anymore.