[QT][QML][MapView] TravelModes doesn't work

Shadow.01

Dear users,
as mentioned in object I have a simple QT application with a QML view and inside to this view I have a MapView with a route inside. All works correctly, except the travelmodes parameter. By this parameter is possible to choose the way to travel; but if I set different values, the route remains the same. No output error I see on the QT console. I copy the map code below; I think, the rest of the app is correct because the map (and also the route) appears correctly.

My purpose is, show a route as a series of segment and not as the curve decided from the navigator; in other words, simply lines between my waypoints.

This is the link explaining the travelModes paramater (see "example usage paragraph):

https://doc.qt.io/qt-5/qml-qtlocation-routemodel.html

This is the code of my QML view:

import QtQuick 2.0
  import QtQuick.Window 2.0
  import QtLocation 5.6
  import QtPositioning 5.6

  Window {
      width: 512
      height: 512
      visible: true

      Plugin {
          id: osmPlugin
          name: "osm"
      }

      Map {
          anchors.fill: parent
          plugin: osmPlugin
          center: QtPositioning.coordinate(60.170448, 24.942046) // Oslo
          zoomLevel: 6
          copyrightsVisible: false


          RouteModel {
              id: rm
              plugin: osmPlugin
              query: RouteQuery
              {id: routeQuery }
              Component.onCompleted: {

                  routeQuery.addWaypoint(QtPositioning.coordinate(60.170448, 24.942046));
                  routeQuery.addWaypoint(QtPositioning.coordinate(62.170448, 23.942046));
                  routeQuery.addWaypoint(QtPositioning.coordinate(63.170448, 27.942046));

                  //Why this row doesn't work?
                  routeQuery.travelModes = RouteQuery.BasicSegmentData;
                  rm.update();
              }
          }

          MapItemView {
              model: rm
              delegate: Component{
                  MapRoute {
                      route: routeData
                      line.color: "green"
                      line.width: 3
                      smooth: false
                      opacity: 0.8


                  }
              }
          }
      }
  }