QT Bluetooth LE crashed when connect/disconnect to a device

~QWinRTLowEnergyConnectionHandler()
    {
        qCDebug(QT_BT_WINRT) << __FUNCTION__;
        // To close the COM library gracefully, each successful call to
        // CoInitialize, including those that return S_FALSE, must be balanced
        // by a corresponding call to CoUninitialize.
        if (mInitialized == S_OK || mInitialized == S_FALSE)
            CoUninitialize();
    }