The only problem I've seen in the alpha is the animations of his weapon are out of control when walking/running in dominion games and only in the 4v4 matches seem to be working fine in any other gamemode.
And the matching system at the moment isn't too good it works fine until your game ends and an enemy leaves you are there playing 2v1 and your teammate might be a bot and won't get replaced so you have to find a new game it's quite annoying when you're searching for a pvp game other than that I have had no problems with the game
Looking forward to the beta

edit: this was on pc if that makes a difference