Smooth first test today, but on a second try, after entering the boarding group, I got that “something went wrong” pop up. I had to hit the x a couple of times before I could get to the Not So Fast screen.
My advice if you see that pop up about trouble connecting is to keep hitting the x then the blue Join Boarding Group button until it goes through. In my tests it has gone through in no more than 2 or 3 tries and that’s a lot faster than going all the way back to the home screen or restarting the app.
Backups still available at 7:15. My theory is that the 10K cuts into the number of resort guests at DHS at opening. It should be the same for the half marathon tomorrow and then be back to backups being gone quickly come Monday.