I'm having the same issue. I tried increasing the build number and still the build appears shortly on the website in the "Processing" state, and then disappears. After the first upload I got an email with an error message, which I resolved and haven't got any email since, but still any uploaded build is not listed on the website. Then I tried increasing the version string from 1.0 to 1.0.1 and the build number as well, and after reloading the website it showed a disclosure indicator with the label 1.0.1, but completely empty. After reloading the website one more time, even this indicator was gone again, and the website is completely empty like at the start of this whole experiment.
Topic:
App Store Distribution & Marketing
SubTopic:
TestFlight
Tags: