Same exact happening to me now too. Literally just started randomly. We need to ship fast but Apple is so annoying.

Please let me know - this is not a new account. Even the new projects don't notarize. My certificates are completely valid, and I haven't changed anything. I'm on the most recent macOS and XCode version. One interesting error I keep getting is attached below. This occurs after I've waited around 32 hours or so and after I've sent in a batch of three to four notarizations, two of them get this error and the other two pass through.