Scene3D.Underlay + RenderSettings.OnDemand can lead to rendering errors

import QtQuick 2.14
import QtQuick.Scene3D 2.14
import Qt3D.Core 2.0
import Qt3D.Render 2.15
import Qt3D.Input 2.0
import Qt3D.Extras 2.15

Item {
    width: 800
    height: 800

    Scene3D {
        anchors.fill: parent
        aspects: ["input", "logic"]
        compositingMode: Scene3D.Underlay

        Entity {
            id: sceneRoot

            Camera {
                id: camera
                fieldOfView: 45
                position: Qt.vector3d( 0.0, 0.0, 40.0 )
                upVector: Qt.vector3d( 0.0, 1.0, 0.0 )
            }

            components: [
                RenderSettings {
                    id: renderSettings
                    activeFrameGraph: ForwardRenderer {
                        camera: camera
                        clearColor: "black"
                    }
                    renderPolicy: RenderSettings.OnDemand
                },
                InputSettings { }
            ]

            PhongMaterial {
                id: material
            }

            TorusMesh {
                id: torusMesh
                radius: 5
                minorRadius: 1
                rings: 100
                slices: 20
            }

            Transform {
                id: torusTransform
                scale3D: Qt.vector3d(1.5, 1, 0.5)
                rotation: fromAxisAndAngle(Qt.vector3d(1, 0, 0), 45)
            }

            Entity {
                id: torusEntity
                components: [ torusMesh, material, torusTransform ]
            }
        }
    }

    Rectangle {
        width: 100
        height: 100
        anchors.centerIn: parent
        color: "red"

        NumberAnimation on rotation {
            from: 0; to: 360; duration: 3000
        }
    }
}