Touch doesn't work within Stackview from QuickControls 2.0

Hi.

I have a QML map object in a page which is loaded in a Stackview. The Stackview is from QtQuick.Controls 2.0. The map object also contains a mouse area to handle pressandhold. 

With this combination, stackview from 2.0 and mouse area, i lost all touch functionality on the map. Changing the stack view version to 1.4 everthing is ok.

You can reproduce it with the "MapViewer" example. When you change the controls from 1.4 to 2.0 you also lost the touch functionality.

How can i fix this?

Regards

Kai

Update: I think this also happens when you put the map in a SwipeView