Cesium obscured line

script.js

const lat = 50.6494;
const lng = 15.74;
const degrees = 195;
const place = {"latitude":50.6341,"longitude":15.7263};

const terrainProvider = Cesium.createWorldTerrain();
const terrainExaggeration = 1.5;
const cesium = new Cesium.Viewer('cesiumContainer', {
  terrainProvider,
  terrainExaggeration,
});
cesium.scene.globe.depthTestAgainstTerrain = false;
const position = Cesium.Cartesian3.fromDegrees(lng, lat, 1343 * terrainExaggeration);
cesium.camera.lookAt(position, new Cesium.HeadingPitchRange(Cesium.Math.toRadians(degrees), Cesium.Math.toRadians(-30), 300));

cesium.trackedEntity = cesium.entities.add({
  position: Cesium.Cartesian3.fromDegrees(place.longitude, place.latitude),
  polyline: {
    width: 10,
    material: Cesium.Color.RED,
    positions: [position, Cesium.Cartesian3.fromDegrees(place.longitude, place.latitude)],
    clampToGround: true,
  },
});
cesium.trackedEntity = undefined;