Android style broken on Android 5

Hi,
I have a QWidget based application that works fine on Android 6 and up. However it crashes on setupui for every dialogs on Android 5. My guess is that Android Style extraction is broken.
If I load a "Fusion" style no crash anymore, but if I do ((in main, before qApp.exe(); ) :

        QStyle *myStyle=QStyleFactory::create("Android");
        qApp->setStyle(myStyle);

Then no QDialog is working anymore (plus I can see the palette is not correct either).

--Philippe Lelong