Hi,

I'm trying to denoise an exr in Houdini with the Arnold denoiser, but whenever I checked a cryptomatte aswell, the rendered image (exr) can't be denoised. When hitting render on the Denoiser, it solely prompts the command line and closes immediately.
With just the light-passes and no cryptomatte at all, the denoising works just fine.
Output Variance AOV is checked to, so it should work properly.

Even when outputting the crypto_asset as a seperate file, it does not denoise.
I'm not rendering with GPU.

Any help appreciated