Popup Menu opens at the wrong position in QQuickView embedded in QWidget

I have created a QWidget from a QQuickView using QWidget::createWindowContainer(). My widget is inside my main window and does not fill the entire window. My main.qml contains a Menu that I open on mouse click using Menu.popup(). The menu opens but it is not at the cursor position. it is actually at cursorPos + My widget's pos in its toplevel window.

Note: I saw similar issues which have been marked resolved.

I am on Windows 10 with two screens.