sky layer cant add to MapBoxGl - QT5.12.4

[miladTalaei]

hello guys
i am using Mapboxgl - qml and every things is ok but i cant tilt above 45 and the sky layer cant found the code :
main.qml

import QtLocation 5.12
import QtPositioning 5.12
import QtQuick 2.12


Map {
            id: map
            anchors.fill: parent

            plugin: Plugin {
                name: "mapboxgl"
                PluginParameter {
                    name: "mapboxgl.access_token"
                    value: "pk.eyJ1IjoibWlsYWRsb3ZlYm90aCIsImEiOiJjanZiaHlrZXEwczF5NDRxZnp0cnFseG9jIn0.CZjNPyoSnkUG4NaEzvb36A"
                }
                PluginParameter{
                    name: "mapboxgl.mapping.additional_style_urls"
                    value: "mapbox://styles/miladloveboth/ckkpdclqt0siu17nppaymn68a"
                }
                PluginParameter {
                    name: "mapboxgl.mapping.use_fbo"
                    value: true
                }

                PluginParameter {
                    name: "mapboxgl.mapping.items.insert_before"
                    value: "aerialway"
                }
            }

            center: QtPositioning.coordinate(44.190448, 35.402046) // Helsinki
            zoomLevel: 16
            minimumZoomLevel: 0
            maximumZoomLevel: 20
            gesture.enabled: true
            tilt: 45
            activeMapType: map.supportedMapTypes[0]
  MapParameter {
                type: "paint"
                property var layer: "sky"
                property var skyType: "atmosphere"
            }
}

and when i run it i got this Error:

Threaded rendering is not optimal in the Mapbox GL plugin.
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [3]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [3]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [3]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [3]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [2]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [2]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [2]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [2]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [2]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [2]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [3]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [3]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [2]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [1]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: [1]: Expected arguments of type (number, number) | (string, string), but found (value, number) instead."
[ WARNING ]  "{QSGRenderThread}[ParseStyle]: invalid layer type"
Layer not found: "sky"
[ INFO ]  "{QSGRenderThread}[General]: GPU Identifier: SVGA3D; build: RELEASE;  LLVM;"

and i added sky layer at Mapbox Studio, and i can see the Sky layer at my custom mapbox style JSON
(search with ctrl+F for "sky" and You can see it)
custom mapbox style link
so whats my problem?
i tried this ways also and i got nothing too:

 MapParameter {
                type: "sky"
                property var layer: "sky"
                property var skyType: "atmosphere"
            }

and this:

 MapParameter {
                type: "layer"
                property var layer: "sky"
                property var paint:{
                "sky-type": "atmosphere"
                }
            }

and i got some error :

Invalid value for property 'type': 'sky'

#ubuntu@uname -a

Linux ubuntu 5.8.0-41-generic #46~20.04.1-Ubuntu SMP Mon Jan 18 17:52:23 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

and the QT version is 14.13.1
so how can i use sky at my mapboxgl?
sorry for bad english - milad From IRAN - Thank you Guys

[miladTalaei]

any answer?