11-03-2018, 01:20 AM
I had a similar problem...not sure if same thing. I installed FumeFX5.0, and the FumeFX Arnold shader. Then I realized I didn't have updated Arnold 5.2.0.0 installed. I install new mtoa and I didn't get a render. I had to repair/reinstall the FumeFX Arnold Shader AFTER mtoa install and it worked.