vrayRT GPU activeshade production problem

[zeiv]

I'm using vrayRT 3.20, and in one project when I use vrayRT GPU activeshade everything is ok, but when I switch to vrayRT GPU production, many materials appear black. I checked and all materials are vray

Any ideas?

 

 

Attached pictures (low quality renders)

[zeiv]

Solved the problem Weirdly, it was due to one object and its geometry.. Once I removed it , everything's back to normal. Don't know why that affected everything else