This incident has been resolved. Thanks for bearing with us!
Posted Sep 18, 2020 - 08:57 UTC
Update
The issues with App Center Distribute have been resolved and all operations are back to normal now. Thanks for bearing with us!
Posted Sep 18, 2020 - 08:15 UTC
Investigating
App Center is experiencing occasional issues distributing to the Apple App Store. As a consequence, uploads to the Apple App Store might fail. We apologize for the inconvenience while we work to resolve this issue.