BETA_CONTRACT_MISSING blocks external TestFlight although all agreements are Active

Since Oct 20, every attempt to submit a build of my iOS app for Beta App Review fails with HTTP 422 BETA_CONTRACT_MISSING (POST /iris/v1/betaAppReviewSubmissions). I re-tested today (Oct 28) with a new build 14 and got the same error. The public TestFlight link shows "Not Found".

What I have verified: In App Store Connect > Business, the Paid Apps Agreement, Free Apps Agreement, banking, tax (W-9) and DSA compliance all show Active. On developer.apple.com/account, the Apple Developer Program License Agreement (issued Oct 13, 2026) was accepted Oct 16, 2026, and there is no pending agreement banner. TestFlight Test Information is complete (beta description, feedback email, privacy policy URL, beta review contact, review notes, beta license agreement), and export compliance is set.

Support case 103003034724 (opened Oct 20, follow-up Oct 23) and feedback FB25331734 have had no reply.

Has anyone seen BETA_CONTRACT_MISSING with all agreements active? Could an Apple engineer please check my account? Thank you.

Update (Oct 28): the problem now also affects internal testing. Internal testers on my team can no longer install any build of any of my apps from TestFlight. On an iPhone 17 Pro Max with iOS 27.0.1, tapping Install or Update shows "Could not install. The requested app is not available or doesn't exist." This happens for two different apps on the same team. In App Store Connect the builds show VALID, not expired, internal state IN_BETA_TESTING, and the tester is in the internal group with access to all builds. This looks like an account-level problem.

I have the same issue.... raised several tickets and nothing happen by now
Case ID: 103010083017
Distribution
TestFlight

Case ID: 103008131028
Distribution
TestFlight

Case ID: 103004016979
Distribution
TestFlight