Random ban? then lifted!

So, with the launch of Halo: Combat Evolved in the MCC I decided to make a livestream, playing the campaing and some multiplayer matches. After three or four games I got kicked out for killing my teammates (I swear it was an accident). The issue is that when I tried to go back to matchmaking it said I was banned for a month from the multiplayer (matchmaking) for no aparent reason. (I mean, bans always have a reason, but we know how automatic stuff can be bugged sometimes)

As the topic title says, it was lifted since 20 mins later I was able to go back online, BUT I still wanted to make this thread to have it as a “bug report” of sorts, and to know if this has happened before.

Things that I think might had something to do:

I was streaming with StreamlabsOBS on Twitch (ok, we get it, mixer is cooler, I’ll stream on mixer now). Maybe the software triggered the anti-cheat system?
Radeon Adrenaline Drivers. Maybe the overlay triggered anti-cheat?
I play using the Xbox App (Xbox gamepass)
Said: “UwU” “OwO” and “notices your flamethrower” un-ironically.

I want to add that first I went to microsoft’s help and support, they searched my profile and said I had no bans applied to me, and recomended me to come here or contact 343’s support.