error on fresh new installation of Hybrid (DEV)

[Bartoloni]

today i uninstalled Hybrid (version of last year) and deleted anyfolder/reference to hybrid on the PC
downloaded latest DEV version

i use Hybrid to Degrain and deinterlace AVI clips in PAL format.

when placing the original footage and asking for a preview this happens:

http://www.wcn.it/h.mp4

the preview on Crop/resize is working the one doing the error is the Vapoursynth (ONLY MCDEGRAINSHARP)