Chunks do not load through the whole match and when players join in and land on an unloaded chunk it kicks for flying. I believe the same chunks dont load for all players in the game.
Need far more information. Which arena. Which chunk? (co-ords) Attempting to help solve these sort of vague reports is near impossible.
i tried to record it but recording device didnt start quick enough Everyone had it in sg2, we joined game and we were just floating in no spawned chunks. EVeryone had to leave to restart the sg for it to work again.