Component as source of a MapQuickItem crashes

import QtQuick 2.7
import QtQuick.Controls 2.0
import QtQuick.Layouts 1.0
import QtLocation 5.7
import QtPositioning 5.0

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr("Map crash")

    Plugin{
        id:esri
        name:"esri"
        PluginParameter { name: "esri.token"; value: "INSERT YOUR KEY HERE" }
    }
    Map{
        id:map
        onSupportedMapTypesChanged: activeMapType = supportedMapTypes[1]
        anchors.fill: parent
        color:"black"

        copyrightsVisible:false
        zoomLevel: 10

        plugin:esri
        ListModel
        {
            id: modelWithAnId
            ListElement
            {
                degLatitude: 1.
                degLongitude: 1.
            }
        }

        MapItemView
        {
            model:modelWithAnId
            delegate:
                MapQuickItem
                {
                    coordinate: QtPositioning.coordinate( degLatitude , degLongitude )
                    sourceItem:
                        Component
                        {
                            Rectangle
                            {
                                id:rectangleWithAnId
                                border.width: 3
                                border.color: "#cccccc"
                                visible: true
                                rotation: 45
                                width:10
                                height: width
                            }
                        }
                }
        }
    }
}

                    sourceItem:
//                        Component
//                        {
                            Rectangle
                            {
                                id:rectangleWithAnId
                                border.width: 3
                                border.color: "#cccccc"
                                visible: true
                                rotation: 45
                                width:10
                                height: width
                            }
//                        }