QML / QT: TableView Vertical ScrollBar (mouse works but touch does not on scrollbar) - qml

Question

A one file, simple example is below that showcases my concern. TableView flick area works as expected with mouse and touch. It's the scrollbar that seems to not function properly. Mouse allows you to click and drag the scrollbar handle and to click in the scrollbar background and the content area responds. However, if you try to press in the scrollbar background or grab the scrollbar handle with touch...no response. Why? Suggestions on how to fix?
Thanks,
-Rich
import QtQuick.Window 2.12
import QtQuick 2.12
import QtQuick.Controls 1.4
import QtQuick.Controls 2.5
import QtQuick.Controls.Styles 1.4
Window {
width: 641
height: 480
visible: true
title: qsTr("Hello World")
Rectangle {
width: 640
height: 200
anchors.fill: parent
TableView {
id: tv
horizontalScrollBarPolicy: Qt.ScrollBarAlwaysOff
verticalScrollBarPolicy: Qt.ScrollBarAlwaysOn
TableViewColumn {
role: "title"
title: "Title"
width: 100
}
TableViewColumn {
role: "author"
title: "Author"
width: 200
}
model: libraryModel1
style: TableViewStyle {
decrementControl: Rectangle {
width: 0
visible: false
}
incrementControl: Rectangle {
width: 0
visible: false
}
scrollToClickedPosition: true
handle: Rectangle {
visible: true
implicitWidth: 10
radius: width/2
color: "#2EA2EC"
}
scrollBarBackground: Rectangle {
visible: true
width: 10
radius: width/2
color: "#DBDDDD"
}
}
ListModel {
id: libraryModel1
ListElement {
title: "A Masterpiece"
author: "Gabriel"
}
ListElement {
title: "Brilliance"
author: "Jens"
}
ListElement {
title: "Outstanding"
author: "Frederik"
}
ListElement {
title: "A Masterpiece"
author: "Gabriel"
}
ListElement {
title: "Brilliance"
author: "Jens"
}
ListElement {
title: "Outstanding"
author: "Frederik"
}
ListElement {
title: "A Masterpiece"
author: "Gabriel"
}
ListElement {
title: "Brilliance"
author: "Jens"
}
ListElement {
title: "Outstanding"
author: "Frederik"
}
}
}
}
}