Worked now with no changes in my code or build.

Same here... I uploaded a build to testFlight on Friday, but today i get this error too when build my app using cross-platform framework Titanium. The app references non-public selectors in Payload/Caixa Previdência.app/Caixa Previdência: callWithArguments:, dataChanged, estimatedProgress, frameInfo, initWithFrame:configuration:, initWithURL:configuration:, initWithURL:entersReaderIfAvailable:, initialURL, isMainFrame, isNumber, isObject, matchFound, navigationType, setException:, setNavigationDelegate:, setProcessPool:, targetFrame, toArray, toDictionary, toObject, userContentController, websiteDataStore With error code STATE_ERROR.VALIDATION_ERROR.50 for id ...