Hi
That's a warning, and you can safely ignore it. GPU rendering should still work.
Newer NVidia drivers have a newer version of Opti. This newer version of Optix is compatible.
We'll be removing this warning in newer versions of Arnold GPU
@Stephen Blair In my case rendering was stopped after this warning. There is "Rendering..." and after it the rendering screen remains black without continuing.
I'm rendering and I get the same warning.
Can you set the verbosity to Info and get an Arnold log?
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