Screen switching bug

I just had a really weird bug happen mid match. My match screen would keep minimizing and bringing up the main clients screen (with game in progress text). I brought this up to the people in the match and they said it was a bug with full screen. So of course i changed it to a windowed setting... but this only solved half the issue, the match screen wasn't getting minimized, but instead the client screen would constantly switch over it, obscuring both my vision of the match and making it so i couldn't do anything in the presious few seconds i'd stop in the match itself.. the bug is massively annoying and really inhibiting my game-play. I don't know if anyone else has reported a bug like this, but i wanted to get the word out there.