I've just completed a ToO match where, at round 4, an opponent in the enemy team left. After winning round 4 I got stucked in the post-round screen and round 5 has been tied (not played). At round 6 a team-mate disconnected and we completed the round with a win, but got stucked because the match was not concluding, thus I decided to manually leave. With that, I got the warning tab. Pretty sure someone on the enemy team was cheating, so I might get penalized because someone in the opponent team cheated. Understandable. Have a great day.