Solved
While testing a level using the mapmaker, team select UI is not visible
Almost every time I try to test a level using the "Play scene in Intruder" function in unity I cannot see the team select UI, It is frustrating but I have been able to get past it by clicking rapidly where one of the teams would be.
https://www.youtube.com/watch?v=B2kHJpeA0-8
I'm not sure exactly what causes this to happen but it seems pretty consistent.