EllipsoidGraphics' outline width doesn't work

[bbbbx]

Sandcastle example: Here is the example, one entity's width is 20, and the others is 1, but they look like same, preview:

I paste the code on below for convenience:

var viewer = new Cesium.Viewer('cesiumContainer');

var outlineWidth = 20;
var outlineWidth2 = 1;

viewer.entities.add({
    position: Cesium.Cartesian3.fromDegrees(-120.0, 40.0),
    ellipsoid : {
        radii : new Cesium.Cartesian3(200000.0, 200000.0, 200000.0),
        maximumCone : Cesium.Math.PI_OVER_TWO,
        material : Cesium.Color.BLUE.withAlpha(0.3),
        outline : true,
        outlineWidth : outlineWidth
    }
});

viewer.entities.add({
    position: Cesium.Cartesian3.fromDegrees(-110.0, 40.0),
    ellipsoid : {
        radii : new Cesium.Cartesian3(200000.0, 200000.0, 200000.0),
        maximumCone : Cesium.Math.PI_OVER_TWO,
        material : Cesium.Color.BLUE.withAlpha(0.3),
        outline : true,
        outlineWidth : outlineWidth2
    }
});

viewer.zoomTo(viewer.entities);

Did I forget something?

Browser: Google Chrome Version 79.0.3945.79 (Official Build) (64-bit)

Operating System: macOS 10.15

[OmarShehata]

This is a Windows issue, see #4223 (comment).

This will be fixed when we switch to using polylines for all lines in the engine, see #8319.