Confirmed as working if you update to Xcode 13 Beta 1. Curiosity - you can upload from Xcode 13 to App Store connect, but for internal testing/testflight only. If you try to submit it to the App Store it will get rejected. Even if you build it with Xcode 12.5 and upload with 13 as it will sign it with Xcode 13 (I had this issue last year with Xcode 11 built, Xcode 12 Beta upload) Hopefully Apple will resolve this soon :-)