Map showing white screen first time it is opened.

[AQTStudent]

@import QtQuick 2.4
import QtQuick.Controls 1.3
import QtQuick.Window 2.2
import QtQuick.Dialogs 1.2
import QtLocation 5.3
import QtPositioning 5.2

Rectangle {
id: nav
x: 0
y: 320
width: 800
height: 960
color: "#00000000"
visible: false

    function setVisible(yesorno)
    {
        nav.visible = yesorno;
    }
    Plugin{
        id: mapPlugin
        name : "nokia"
        PluginParameter { name: "token"; value: "xxx" }
        PluginParameter { name: "app_id"; value: "yyy"}
    }

    Map {
        id: map
        plugin: mapPlugin
        anchors.fill: parent
        width: parent.width
        height: parent.height
        center {
                latitude: 51
                longitude: 5
            }
        zoomLevel: 1;
        gesture.enabled: true
        visible: true
    }

    Text {
        id: text1
        x: 97
        y: 94
        width: 649
        height: 160
        text: qsTr("test")
        font.pixelSize: 15
    }

}
@

When I enable this window(or make it visible) it stays white at first until I move the map around.
The desired behavior is to show the map right away.
How can I establish this?

[AQTStudent]

Anyone with an idea???
I got rid of the problem and now I have it again..