Seems to be solved now for me! I did not update XCode. I think it was an issue with the way that Apple verifies their apps (see Developer Tools Engineer comment here: https://developer.apple.com/forums/thread/127678?page=6)... that is now fixed... yay.
I wasted a day on this meaningless issue, but I'm glad that Apple fixed their problem within a relatively short 12 hour span and not 12 days!
bobbobbob
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