Painting is not shown for Animators in the QML profiler when the non render thread is blocked

import QtQuick 2.2

Rectangle {
    id: root
    width: 500
    height: 500

    Component {
        id: text1
        Text {
            text: "Hello world"
        }
    }

    Rectangle {
        id: rect1
        x: 100
        y: 100
        width: 100
        height: 100
        color: "blue"
    }

    Rectangle {
        id: rect2
        x: 300
        y: 100
        width: 100
        height: 100
        color: "orange"
    }

    RotationAnimator {
        target: rect1
        from: 0
        to: 360
        duration: 2000
        running: true
        loops: Animation.Infinite
    }

    NumberAnimation {
        target: rect2;
        property: "rotation";
        from: 0
        to: 360
        duration: 2000;
        running: true
        loops: Animation.Infinite
    }

    Loader {
        id: textLoader
    }

    SequentialAnimation {
        running: true
        PauseAnimation { duration: 1000 }
        ScriptAction { script: textLoader.sourceComponent = text1 }
    }






}