As I mention in heading, I have issues with preview of textures (bitmaps in material diff slot) in asset editor.
I need to change to CPU to view the textures. Vray log window has no errors/warrnings.
Nvidia driver is 497.09, and the latest Vray and Rhino builds.

Thanks
I have exactly the same issue. Any advice?
Hi,
Does this happen with a specific project or with all projects, even newly created ones?
Can you render those materials with V-Ray GPU(CUDA or RTX engine)
Can you share an example to check on my side?
Hi @slavcho.brusev
it happen in every project, also new created. I tested it right now.
I sned you a simple project wtih generic material with jpg diff texture. Hope it helps.
Also, the materials are rendered fine on CUDA or RTX. Everything works just the texture preview has issues. 
Black GPU.zip (1.02 MB)
Thank you for reporting this!
The issue has been logged as SK-3771
Thank you for informations
Hi pavol_pastork,
This issue has been fixed in the last V-Ray for Rhino update.
Thank you for the patience,
Konstantin
Hi @konstantin_chaos
thank you for your great work and for reminder. I confirm that the issues is gone.