Color change happens when displaying 3D model

I have imported a 3D model and converted it to 3DTileset, When i display the Model, some part of the 3D model is shown as yellow transparent material. How can we solve this issue.

Hi, it would help if you are able to:

  1. Validate the model. Run it through the glTF-Validator tool and let us know the results
  2. Include a Sandcastle example that replicates the issue