Rhino Direct Link Material issue.

Hello.

I'd like to ask you a question about Rhino and Datasmith.

1. I separated the material from Rhino into layers.

2. I've imputed it to TwinMotion with Datasmith's synchronization feature.

3. Some materials were created like mash of other materials other than the ones I set up.

The way I tried to solve it,

1. Copying modeling data to a new file.

2. Apply new layers and new materials.

I want to know the cause and solution of this problem.