QML RangeSlider does not work well on touch screen

A minimal reproducer is simply a RangeSlider in a QML Window:

import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

ApplicationWindow {
    width: 400
    height: 400
    visible: true

    ColumnLayout {
        spacing: 100
        anchors.centerIn: parent

        Slider {}

        RangeSlider {
            id: mySlider
            from: 1
            to: 100
            first.value: 1
            second.value: 100
        }
    }
}

Any property is irrelevant. They can be any values and they do not matter.

The issue is that a touch is expected to behave in the same way as a mouse click. That is, a mouse click moves the first or second handle to mouse position. and a touch should also moves the first or second handle to finger position. But touch does not move handles.

More related information:
1. Dragging works well, i.e., one can touch the screen, keep pressing and drag the handles.
2. Normal Slider works fine with both touching and dragging. The touching issue only happens to RangeSlider.