Sample 3D KML displaying

Dear Sir,

I prepared 3D data and then using Geoserver published as KML service and trying to display in Google earth and cesium

the same KML file shows the data in Google Earth but it doesn’t show the height of the building

but again same KML service in Cesium doesn’t show anything

hee I am uploading the KML file please have a look

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 46.47249752062245 24.91555826984404 1252.0730903330784 0.0 0.0 1011.74073031407 clampToGround RYD_PARCEL_3D2 1 1 46.47249748252411 24.915558295345704 1445.2336820744945 0.0 0.0 1167.8246200368098 clampToGround;KMATTR:true;KMPLACEMARK:false;KMSCORE:40;MODE:refresh;SUPEROVERLAY:false 0.0 onStop 1.0 1.0

Thank you
Mohammed Kabeer