Buildings from Cesium.createOsmBuildings() floating way above ground?

CesiumJS
1

Sandcastle available at: Cesium Sandcastle

let terrainModels = Cesium.createDefaultTerrainProviderViewModels();
this.viewer = new Cesium.Viewer('cesiumContainer', { shouldAnimate: true, terrainProviderViewModels: terrainModels, selectedTerrainProviderViewModel: terrainModels[0] });
const buildingTileset = this.viewer.scene.primitives.add(Cesium.createOsmBuildings());
position = new Cesium.Cartesian3(-2379556.799372864, -4665528.205030263, 3628013.106599678);