Twisted Domain DC Bug

After entering boss area in Twisted Domain i got DCed during boss entering animation.
After logging in again i run to boss and was stopped by arena wall. But i cant pass it, no enternig point to click. And when i run 1 screen away and go back to arena wall i hear boss entring animation each time

Can confirm, same thing happened to me - DC, can not re-enter portal blocking the way - boss stuck in the fight spamming spells, bricked fight.

So frustrating actually...
Bug Report ID: #2909153725