Non-Aggressive Bots on Spartan difficulty

Last night i was playing Training and all of a sudden all the bots in the game got stuck in a loop and became peaceful
shooting at the bots or even killing them didn’t make them shoot back or anything, they just stared at me haha
I even switched to ODST difficulty to see if that would reset that behaviour but it didn’t lol
It was a fun bug/glitch but i still think it needs to be addressed