I was doing my bit to try to solve the puzzles for the secret card back but after conceding once on druid to try hunter the normal level of practice mode would no longer let me queue games always saying ‘your game failed to connect try again in a few minutes’ or something similar. Then i tried hunter on expert I conceded that game to try to go back to druid and now that practice mode is also locked out. I cannot start practice games in either mode but all other game modes work fine.