SkillTest Ultimate + Random

update - some kind of issue with simultaneous turns, where should I complain?

This might be a bug in the lobby or some script errors on the map, but for now, I don't see any errors. If the map has a script (e.g., placing a random spell in a chest), simultaneous turns are reset. If you play without simultaneous turns, there is no error.
I'm looking into it and have submitted a bug report.