Loading 3dtiles occure white triangles filed in surface of the model

thie model show with white triangles

It’s hard to say what is happening there. Does this tileset work in other clients? What tool was used to create it?

The model is created by cesiumlab.The model is well showed in unreal,I choose other models which occure the same problem in unity.

Do you happen to know if the model uses triangles strips or fans? If so, this will likely be fixed in the next release (which will be out next week). Otherwise, Cesium for Unreal and Cesium for Unity share most of their 3D Tiles loading code, so it’s not clear what might be going wrong.