@crystalfunky
I have enabled MCTempDenoise and opened the preview in staxrip, after that I started an application called Process Explorer and clicked on the search toolbar button, in the search field I entered gpu and clicked enter, this showed me that the staxrip process has successfully loaded a DLL named FFT3dGPU.dll.
This means it's working here and the problem is specific to your machine, this DLL has gpu in its name which implies it could be a missing GPU driver or hardware, or it could be a dependency.
@Groucho
I wanted to write a guide for crystalfunky how to do the diagnostic in the staxrip terminal (Tools > Advanced > Windows Terminal) but it doesn't work.
Code:
Desktop> AVSMeter64 avsinfo -c ("$env:startup_dir\Apps\Plugins\AVS\FFT3DGPU")
Invalid argument: "D:\Projekte\VB\staxrip\bin\\Apps\Plugins\AVS\FFT3DGPU"
Desktop> AVSMeter64 avsinfo -c 'D:\Projekte\VB\StaxRip\bin\Apps\Plugins\AVS\FFT3DGPU'
Invalid argument: "D:\Projekte\VB\StaxRip\bin\Apps\Plugins\AVS\FFT3DGPU"