When I try to use the material browser, it says there is no result.

Hello, I want to ask something. I use the Catia part design app in 3dexperience, but when I press the material browser to use it, nothing comes up. What should I do in this case? I downloaded the assembly design and pasted the material there, but nothing changed. In the first place, there was only one picture file in the resource-material file.

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