Qt6 MouseArea does not get events when it is inside background item of QuickControl element.

This is a regression between Qt5 to Qt6 or perhaps a change of behaviour.

I have nodes defined in a flickable. Each node is a QtQuickControl pane.

I need to be able to drag those nodes. So I put a mousearea inside the background Item to make sure the mousearea has the same geometry than my node. It works perfectly with Qt5 but in Qt6 the event are stolen by the flickable (I guess).

The only way to make it work, it's to put the mousearea into contentItem of the QtQuickControl pane. But In this case, the mouse area follows the padding rule and it required many workarounds to get the full space. It produces verbose code (Qt: Code less, create more).

Please take a look to the simple example and the two gif files, I provided. And please keeps in mind that the code is strictly identical in the Qt5 and Qt6  version.

If the Qt6 behaviour is the one you want to keep, please add information into documentation:

https://doc.qt.io/qt-6/qml-qtquick-mousearea.html#preventStealing-prop
Reading the documentation: preventinStealing should fix it but it does not.