Unsolved Loader shows nothing when loading a large number of elements asynchronously

[Name already in use]

Hello,

I've played around with the Loader and stumbled upon a somewhat irritating behavior.

When running this code

import QtQuick 2.15
import QtQuick.Window 2.15

Window {
    width: 1500
    height: 1000
    visible: true
    title: qsTr("Hello World")

    Loader {
        sourceComponent: comp
        asynchronous: true
        anchors.fill: parent
        active: true
        visible: true

        onStatusChanged: {
            switch (status) {
            case (Loader.Ready): console.info("ready"); break;
            case (Loader.Loading): console.info("loading"); break;
            case (Loader.Error): console.error("error"); break;
            case (Loader.Null): console.info("null");
            }
        }

    }

    Component {
        id: comp
        Flow {
            anchors.fill: parent
            spacing: 2
            visible: true
            Repeater {
                visible: true
                model: 500
                Rectangle {
                    visible: true
                    width: 5
                    height: 5
                    color: "blue"
                }
            }
        }
    }
}

with the model property of the repeater set to > 500, nothing is shown in the window although the status is Loader.Ready. If the Loader is used synchronously, everything works as expected.

Can anyone tell what is causing this problem?