I solo queued into an unrated match, and after the 6th round, the game exited to the main menu and the "Cheater Detected" screen popped up, claiming a cheater was in the game, no win or loss has been counted, etc. I thought ok, queued another game only to find that I had a 30 minute cooldown because "one of your party members has been penalized" (As it said in the error window). I solo queued into the game, so I am not sure why it penalized me, or considered my teammates members of the party. Not sure if this is a mistake but just wanted to get the situation out there somewhere.
(P.S. forgive me if this is not the right category, I could not find anything related to false penalizations, thanks)