加载model模型（gltf)不显示，但在没有earthSDK的环境下用原生cesium可以显示

如题，用earthSDK显示地图，加载gltf模型（使用的cesium的viewer.entities.add方法），发现有的模型显示，有的无法显示（一个透明材质的椎体）
但是在没有earthSDK的环境下，用原生的cesium加载地图，模型显示是没有问题的
请问是earthSDK有做什么处理吗？

Reproduce the issue with EarthSDK and native Cesium, using viewer.entities.add to load the transparent-material glTF cone described in the report. Compare the model's rendering in both environments and identify whether EarthSDK changes the rendering path or configuration. Done means the cause is isolated and the model displays consistently or the incompatibility is documented.

Written by the indexing model from the issue text.