I'm stuck on what looks like a backend / account-level TestFlight issue and want to ask if anyone has seen the same pattern. Symptoms (reproduced across three consecutive builds) App Store Connect ingests and processes each build successfully; it shows as "Testing" in TestFlight with no compliance warnings. Internal TestFlight install fails instantly on every tester device with: ▎ "The requested app is not available or does not exist." Device console (itunesstored) at install time: FAILED: TFBundleInstallation serverFailureReason="Error Downloading Install Data" userFailureReason="Requested app not available or does not exist" buildGroup=(null) phase=Failed previousPhaseDescription=ProcessingInstallInitiateResponse serverCode 200 Submitting the same build for external Beta App Review returns: 422 ENTITY_UNPROCESSABLE code: BETA_CONTRACT_MISSING buildGroup=(null) for builds that visibly show as "Testing", plus a persistent BETA_CONTRACT_MISSING, suggests the beta-contract / build-group record for the app is missing or corrupted on the backend. Already verified clean on the developer side Distribution certificate and provisioning profile valid; entitlements match the binary; codesign --verify --deep --strict passes. Free and Paid Apps Agreements both Active; no pending tasks (Banking, Tax complete). App Information, Pricing & Availability, Age Rating, Content Rights, Test Information all complete; build page shows no warnings. Reproduced with multiple testers on multiple iOS 17+ devices, in a fresh internal testing group, after device-side cleanup (sign-out / reinstall TestFlight). Re-uploading a fresh build does not clear it — so it is not bound to a specific binary. Questions Has anyone seen Error Downloading Install Data + buildGroup=(null) + BETA_CONTRACT_MISSING together on a single app? How did you resolve it? 2. Why does ProcessingInstallInitiateResponse return serverCode 200 while still failing with "app not available", for a build that shows as "Testing"? 3. Is there a documented path to request that engineering regenerate a corrupted beta-contract / build-group record, beyond a standard support case? Any pointers appreciated — happy to share device logs / sysdiagnose if useful.