English is not good. As far as I can, I will tell my problem.
I downloaded Asset pack 12GB. I installed it in the directory where the D5 render program was installed without any problems. However, I cannot see the materials in the list as an offline asset. Where could I have made a mistake?
You can read here for better understanding How to Install D5 Asset Pack?
installed it as written there.
But the materials loaded in the Asset editor are not visible. D5 render do not pro installed version