[REG 6.7.2 -> 6.7.3+] Android - Any popup widgets on Android is completly broken

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;

    QPushButton* mainButton = new QPushButton("Show Popup", &w);
    mainButton->setGeometry(50, 50, 150, 40);

    QWidget* popup = new QWidget(&w, Qt::Popup);
    popup->setFixedSize(300, 300);
    popup->setStyleSheet("background-color: grey; border: 1px solid black;");

    QPushButton* button = new QPushButton("Click Me", popup);
    button->setGeometry(100, 130, 100, 40);

    // BUG - the click signal is never called 
    QObject::connect(button, &QPushButton::clicked, button, []() {
        qDebug() << "Popup button clicked!";
    });

    QObject::connect(mainButton, &QPushButton::clicked, &w, [popup](){
        popup->move(100, 100);
        popup->show();
    });

    w.show();

    return a.exec();
}