NEED HELP ASAP

Hey guys. I have been working on a certain map for over 2 weeks now. Finally got done with it and want to publish the map. Buuttttt i have an issue that I cant seem to fix.

There are 16 teams. For some reason some teams arent able to damage other teams. This happens randomly. For example:
Round 1: Team 2 IS ABLE to damage team 4.
Round 6: Team 2 IS NO LONGER ABLE to damage team 4???

I want to publish this map ASAP but I cant seem to find the issue. Ive asked many other creators and they dont know whats causing it. Please help.