iOS app "Processing" in iTunes Connect

Yes, this is perfectly normal. You just have to wait for it to finish processing (can take a few minutes or a few hours depending on Apple's traffic). Once it is done processing, it will appear in that builds section and you can select it as the version you want to submit. This is the same for TestFlight.

I recommend getting watchbuild and running it on your terminal so you can just get a notification on your computer when your build is done processing instead of having to keep checking App Store Connect.

It happened to me a couple of times. I just uploaded a new version (same code, just increased the version) and it was processed quite fast.

Just in case, the second time I kept the archiving dialog in the foreground.

This is normal. After uploading a build, iTunes Connect performs some processing to prepare it for TestFlight Distribution and App Store distribution.

The status of the build should go to ready after some time. Sometimes, this happens as fast as 15 minutes after uploading but can sometimes take 1 hour or longer. After the processing finishes, the build will become available to select for TestFlight betas and app submission.

Yes, this is perfectly normal. You just have to wait for it to finish processing (Can take a few minutes or a few hours depending on Apples traffic). Once it is done processing, it will appear in that builds section and you can select it as the version you want to submit. This is the same for testflight.

Additional from my personal experience (happened to me once and only once), if you submit the archive late at night on the last weekday or just before a public holiday, "sometimes" it might be processed on the next working day on the morning.

I'm at Indonesia (GMT +7), it is not uncommon for me to upload an archive around 7PM, and if it doesn't get processed in 15 minute, I usually just go home, and check it in the morning the next day. Because it happens a few time that if I upload too late, it get processed around 8AM the next morning.

I had this issue today, i tried all of the fixes suggested and found that you need to wait till the invitations are sent out. I think the servers were just very busy when i was trying to test my app.