We started having the same issue today. Adding my specific error message here, which seems to be duplicated above, so that hopefully we are notified once the issue has been resolved: ITMS-90338: Non-public API usage - The app references non-public selectors in ibble: __swift_objectForKeyedSubscript:, authorizedScopes, createRequest, estimatedProgress, isMainFrame, isPassthrough, newSocketQueueForConnectionFromAddress:onSocket:, onSuccess:, relativeSize, removeValuesForKeys:completion:, setNavigationDelegate:, setProcessPool:, setRequestedOperation:, setRequestedScopes:, socket:didAcceptNewSocket:, socket:didConnectToHost:port:, socket:didConnectToUrl:, socket:didReadData:withTag:, socket:didReadPartialDataOfLength:tag:, socket:didReceiveTrust:completionHandler:, socket:didWriteDataWithTag:, socket:didWritePartialDataOfLength:tag:, socket:shouldTimeoutReadWithTag:elapsed:bytesDone:, socket:shouldTimeoutWriteWithTag:elapsed:bytesDone:, socketDidCloseReadStream:, socketDidDisconnect:withError:, socketDidSecure:, spanArray, spanArray_Count, toggleEditing:, underline, userContentController, websiteDataStore. If method names in your source code match the private Apple APIs listed above, altering your method names will help prevent this app from being flagged in future submissions. In addition, note that one or more of the above APIs may be located in a static library that was included with your app. If so, they must be removed. For further information, visit the Technical Support Information at http://developer.apple.com/support/technical/ Like many we were good w/ a build and minutes later w/ no change other than meta-data things started to fail.