Map freeze in multiplayer - W3 reforged

Hello, got a really frustrating problem.

I got an arena where waves come at you and you have to kill them with the team to progress.
For some reason in multiplayer it always freeze in second round at second wave.
I triple checked the trigger and it is the same copy paste trigger as all other rounds/waves.

It didnt freeze when I test it alone from editor or when I test it with one player. But it always freeze in multiplayer with full lobby(6 players).
Also found similar problem that I think still has not been fixed in Frozen Throne editor Maps Freezing since last patch - #38 by DrSuperGood-1327

Thank you very much for any help