I tried to slice PBR models in CesiumLab, but I failed.
Hi @yubo_jing, welcome to the community!
Despite the trademark violation, we are not affiliated with cesiumlab in any way, so it will be difficult for us to troubleshoot. We have found that exports from cesiumlab can cause differences with how they are rendered in Cesium runtimes.
If there’s anything wrong with the Cesium for Unreal plugin itself, though, please give us more information on what’s giving you the error. Alternatively, you can use Cesium ion to convert your model to 3D Tiles, and we’re in a much better position to support you there. 