Halo 5 Firefight AI Spawning Issue

I’ve been grinding for SR 152 in Halo 5 and because of that I’ve been playing a ton of Firefight. I’ve run into an issue multiple times on the map Prospect where the AI will stop spawning. I’m almost certain the AI stop spawning because all those that have already spawned have been killed off really quick. This is really frustrating as I have lost a game because the AI stopped spawning and I couldn’t finish the objective; other times I, along with all the other players in the lobby, had to waste 3-4 minutes running around waiting for the round to end. Can anyone else attest to this issue?