I was queuing up my next gauntlet match and after waiting for 1 minute and 30 secs (that’s what the in-game timer said at least) it gave me notification that I couldn’t join the game as it was already concluded!
I checked my match history and sure enough there was a loss! Checking the replay it seems that the game had auto-conceded me during the mulligan without actually loading me into the game so now I’m at two losses in my ticket and until I can get this issue resolved I’m not risking my 3rd!