Random teams could be causing crashes in lobbies of 5+#343

We experienced a pretty reproducible error on the Chicago server (did not try listen server) where if we had 5 players, the host was on spectate, and random teams was on, the game would crash when moving out of the CSS to stage select. We never had an issue once we moved to choosing teams. It could be unrelated, this leads me to believe there’s some issue with the logic of selecting team colors from the pool of players in the lobby.