I am having the same issue. I uploaded a build yesterday and it is still not visible. Not even processing. Even though the servers are busy, it should be indicated in itunes connect that the build has been submitted, that the servers are busy and the app. wait time.
FOUND A SOLUTION:
I have just uploaded a new build, but this time I did not include the Bitcode. NOW I see the build. Hope this comment is of any help.
SECOND UPDATE:
It was only for a short while I could see the Build. Now it is gone 😟. I can see that others have a problem with configuring the plist file. I will now try to find the right configuration.
I agree that APPLE should indicate the problem or at least tell you in a mail that there is a problem and it has been rejected!!
THIRD UPDATE:
NOW I can see the Build. The issue was the plist file. I needed to insert privacy statement and now I can start testing. Hope you can use my comments.