I have an Arena run going 1-1 but when i back to menu to check quest progress and come back again, it lost. It still show 1-1 result but no where to continue the run, only bought more tickets option. I tried log out and in again but not work. Then i bought 2 tickets and start a new run, lost 1 game (0-1). Back to menu again and the second run have the same issue.
i was 5/2 i was picking new cards and a friend send me a challenge. when it finish i wanted to came back to arena run and it was over