I've only tested a few, I remember that TIVTC v1.0.5 didn't work, but v1.0.9 worked. Neither Deen or eDeen have worked for me, however I've seen that in
https://github.com/vapoursynth/vapou...nth_compat.cpp there are the lines:
PREFETCHR1(deen)
PREFETCHR0(eDeen)
so I assume that there is compatibility?
Also someone used Deen in their vapoursynth script here:
https://gist.github.com/4re/bba3f65469acfe0ec08a
EDIT:
I tested a few avisynth plugins at random to see which ones worked, and can confirm that I got the same error message when trying to load Average, BlendWeight, ColorBalance, FFT3DFilter, and Vinverse.
I have recently reinstalled both Avisynth and Vapoursynth and am having the same error.