"Make unique" option disabled!

D5 Render Version: 2.3
Graphics Card: RTX 3070 8GB

Issue Description:
The “Make unique” option is disabled, any reason ? Thanks.

Screenshots/Videos Description:

Hi mate, if the assets are grouped, the “Make Unique” will be disabled.

Hey, thanks for your response but it’s not grouped, it’s shown that one object is selected, still have no solution except reimporting…

Hi, the “Male unique” is usually disabled if the assets are not supported by adjusting the material. Is this asset " Assiette" from D5 library or custom use?