Thanks for responding. By “verification,” I mean the following Terminal command run against Runner.app extracted from the App Store IPA: codesign –verify –deep –strict –verbose=4 “/path/to/Runner.app” It reports: Runner.app: valid on disk Runner.app: does not satisfy its designated Requirement I also inspected the signature and designated requirement using: codesign -dv –verbose=4 “/path/to/Runner.app” codesign -d -r- “/path/to/Runner.app” The app shows an Apple Distribution authority and the correct TeamIdentifier. Xcode’s Validate App and App Store Connect upload both fail with error 90035 for Runner, App.framework, and Flutter.framework. I’m happy to follow your debugging steps. Please let me know which outputs or diagnostic files you need. I will sanitize personal and project identifiers before posting them publicly.