I am loading an fbx model with texture and getting this error, An error occurred while rendering. Rendering has stopped

RuntimeError: Fragment shader failed to compile. Compile log: ERROR: 0:317: ‘v_texCoord_0’ : undeclared identifier
ERROR: 0:317: ‘=’ : dimension mismatch
ERROR: 0:317: ‘=’ : cannot convert from ‘const highp float’ to ‘highp 2-component vector of float’

Error
at new XE (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:66:4648)
at yke (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:884:122)
at kde (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:885:1411)
at zU (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:885:1361)
at Lb._bind (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:885:2213)
at cft (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:10656:35028)
at Du.draw (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:10656:35863)
at tX.execute (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:882:7206)
at yc (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:14794:20121)
at Vee (https://ion.cesium.com/ThirdParty/@cesiumgs/cesium-analytics/Cesium.js:14794:23451)

Hi,

To confirm you are trying to load the FBX file directly into CesiumJS?

Or is this after you have tiled the FBX asset? If you have tiled the FBX model, can you provide an asset id so we can investigate it further?