ScrollBar not responding to windows gestures or wheel

[igor_stravinsky]

I've got a ListView with a ScrollBar in it that responds well to gestures or mouse clicks on Mac, and to mouse clicks on Windows, but is ignoring two finger swipe gestures on Windows, or movement by a scroll wheel. Any ideas why that would be, and how to fix it?

[this is all in version 5.10 of quick controls 2]

ListView {
            id: myList
            width: mainWindow.width ; height: parent.height
            model: documentManager.layoutDocuments
            
            ScrollBar.vertical: ScrollBar {
                anchors.right: myList
                active:true
            }

            delegate: Rectangle {
                width: mainWindow.width; height: mainWindow.height
                Image {
                    id: image
                    anchors.centerIn: parent
                    width: parent.width; height: parent.height
                    fillMode: Image.PreserveAspectFit
                    source:  model.data
                }

            }
}