Our app was built with Flutter and implements Sign in with apple with this package: https://pub.dev/packages/sign_in_with_apple I wonder if there's any similarity between other cases. This error happens specifically when the authorization code has been sent to our server and our server sends it to 'https://appleid.apple.com/auth/token' to request id_token.

Was this resolved? Please let us know the update thanks!

I'm having the exact same issue, none of my team is able to reproduce this error while the review keeps failing with this. Maybe there's something different about the review account compared to the normal Apple IDs? Please investigate asap thank you.