Ok, it's possible to trace what exactly is happening, but not all 14 plugins are being used! Here is what you get with denoise and setting "very low" fft3d(sigma=1), MVDegrain, MVTools(idx=40) From So it looks like 3 filters are being used. I can't say for sure without going through the whole script myself. In fact in all the settings except high, those are the only 3 filters (high uses ttempsmooth). It's simple to test, call the denoising only and see what error messages you get, keep adding plugins until it works.