Banned after completing a game of swat?

I got banned after completing a game of swat. I’m a bit confused why I was banned. I left a game earlier but then completed this match and it said I was banned from Halo 5 Guardians for no reason. I dont have mods (I dont even know how to) I also wasn’t lagging nor did I get disconnected from the game. So, why was I banned from playing the game and completing the match?

Try restarting Halo, as it may (hopefully) have come up in error. I’ve seen it happen before.

I just tried and it still says I have been banned. It doesn’t even have a time limit like it does when you leave 2 matches.

Please use the ban thread in the Halo 5 support forums for help with bans
Official Halo 5 “Why was I banned?” thread