QML map, MouseArea not working from sourceItem of a MapItemView delegate MapQuickItem

In QML I have a Map with contain a MouseArea of Map's size "anchors.fill: parent".

On the map I display a set of Images through the usage of MapQuickItem linked to a MapItemView. Each Image has its own MouseArea of Image's size "anchors.fill: parent", so onEntered the image is scaled to a larger size.

This works perfectly in 5.11.3

In 5.12.0 the Image's MouseAreas never emit any signal about mouse Entering or clicking. But if I remove the Map's MouseArea, then the Image's MouseAreas will correctly detect the mouse actions.