When trying to publish a release version of an iOS app using a native extension with a private framework, i get a
ERROR ITMS-90034: "Missing or invalid signature. The bundle '$bundleIdentifier' at bundle path 'Payload/AppName.app/ios/Frameworks/SomeFrameworkName.framework' is not signed using an Apple submission certificate."
The .ipa is correctly signed with a distribution certificate.
When publishing for ad hoc distribution, no such error occurs.
IPA export was done though Flash Builder 4.7,
AIR SDK 18.0
iOS SDK 8.0
Application Loader 3.1
You may need to re-sign the framework and re-package the ANE.