Hi,

We were fighting with Hemlock third time (the finale fight I assume). He had around ~10% HP and then I saw how he was stucked into center of location (around a portal) and then just disappeared. Fight wasn't ended. We saw the HP line, but couldn't make any damage (because there wasn't the boss). Unfortunately, the only way was just to leave the game.

Screenshot
https://ibb.co/CsVGjLP

Thanks,
Kirill