The Black Cathedral game stuck after boss dies

After killing the boss, my character rapidly lost hitpoints and was stuck in the death animation. I had network connection and was still logged in the game but nothing was responsive. No inventory, ability to portal, etc.

Relogging solved the problem.

I am reporting this because it was a bit of a scare after a boss fight to maybe lose progress or the loots as you would from a similar bug-death after a campaign boss. Someone may be reticent to log out or very frustrated due to this due to the +2 map skill book and unique drops from the event.

My usual image hosting isn't working but my screenshot just shows exactly what is described... stuck at black cathedral level 80 in death animation after boss has died and loot is on ground.