Hi,
I have set up a simple smoke/fire scene here but it will not denoise, all I get is a white cube on a black background. Here is the .blend file for it, I'm pretty sure I have all the correct settings.
Jason
16.2.8 Linux no volume denoise
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Before posting a bug report, please check the following:
1. That the issue has not already been disclosed
2. That the issue is specific to this plugin, and not Octane in general (Try reproducing it in Standalone)
Bugs related to the Octane Engine itself should be posted into the Standalone Support sub-forum.
All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
C. RAM Capacity (i.e. 6 GB)
D. Nvidia driver version (i.e. 7.50, 7.5.22)
E. OctaneRender Standalone version, if installed (i.e. 2.24.2, 2.23, etc.)
F. OctaneRender plugin version (i.e. v2.25 - 2.21)
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Thanks Drawfun, that was the issue. 
These settings are getting very spread out and it's hard to keep track of them all, especially when you have to scroll through them.
With that fixed, I have another issue.
That is saving the denoised images out when rendering an animation. I have set the "Preview pass type" to "Denoiser Beauty" but only the beauty pass gets written to the files. Is there another setting I need to set to get the denoised image out for animations?
Jason
These settings are getting very spread out and it's hard to keep track of them all, especially when you have to scroll through them. With that fixed, I have another issue.
That is saving the denoised images out when rendering an animation. I have set the "Preview pass type" to "Denoiser Beauty" but only the beauty pass gets written to the files. Is there another setting I need to set to get the denoised image out for animations? Jason
Linux Mint 21.3 x64 | Nvidia GTX 980 4GB (displays) RTX 2070 8GB| Intel I7 5820K 3.8 Ghz | 32Gb Memory | Nvidia Driver 535.171
Grimm, the only option to save denoised animation sequence is to use Blender's compositor where you can save all defined render passes.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
System – Windows 11
My Behance portfolio, Blender plugin FB support group
It's not an issue. This is how it works in Blender, weather you use Octane or Cycles.
CPU – i9 13900KF, 128GB RAM, GPU – RTX 4090
System – Windows 11
My Behance portfolio, Blender plugin FB support group
System – Windows 11
My Behance portfolio, Blender plugin FB support group
From what I have found it looks to be a bug with the plugin. The plugin should be adding the Octane passes to the preview pass type menu. The one I was selecting was the Cycles pass, which is not available, so I'm assuming that Blender just choose the combined pass by default and saved it instead. You shouldn't have to use the compositor to output the denoised images.
Linux Mint 21.3 x64 | Nvidia GTX 980 4GB (displays) RTX 2070 8GB| Intel I7 5820K 3.8 Ghz | 32Gb Memory | Nvidia Driver 535.171