MultiPointTouchArea problem

I'm trying to use more than 2 points in MultiPointTouchArea

Code:

---

MultiPointTouchArea {
        id: touchArea
        anchors.fill: parent
        maximumTouchPoints: 5
        minimumTouchPoints: 1
 
        touchPoints: [
            TouchPoint { id: point1 },
            TouchPoint { id: point2 },
            TouchPoint { id: point3 },
            TouchPoint { id: point4 },
            TouchPoint { id: point5 }
        ]
 
        // Workaround for item.contains(point)
        function isInsideItem(item, point) {
            var hx = item.x + item.width;
            var lx = item.x;
            var hy = item.y + item.height;
            var ly = item.y;
 
            if (point.x > lx && point.x < hx && point.y > ly && point.y < hy)
                return true;
 
            return false;
        }
 
        onPressed: {
           for (var i = 0; i < repeater.count; i++) {
               var item = repeater.itemAt(i)
               for (var j = 0; j < touchPoints.length; j++) {
                   var point = touchPoints[j];
                   if (isInsideItem(item, point)) {
                       sbuttons.play(i+1)
                       item.color = "red";
                   }
               }
           }
        }
        onReleased: {
            for (var i = 0; i < repeater.count; i++) {
                var item = repeater.itemAt(i)
                for (var j = 0; j < touchPoints.length; j++) {
                    var point = touchPoints[j];
                    if (isInsideItem(item, point)) {
                        sbuttons.stop(i+1)
                        item.color = "white";
                    }
                }
            }
        }
...

---

But when I'm using more than 2 fingers, I still have two points in touchPoints array. Third finger just does nothing.
What am I doing wrong?