Send you a new dev versio which hopefully fixes the issues around filtering and outputting interlaced.
-> please test it and let me know.
As a general side note: I normally would recommend to not use 'separate fields' but instead let Hybrid deinterlace and reinterlace for output since often filters work more optimal on progressive input. That said now hopefully the 'separate fields' should work again.
Seems like d2vsource.dll doesn't work due to some missing dependencies.
To check I installed Hybrid on a Windows without any runtimes installed, opened a vob in Hybrid and opened the Vapoursynth Preview and I can reproduce the issue.
I found the issue, I accidentally delteted the d2vsource.dll in the installer dir.
-> Using d2vsource from https://github.com/dwbuiten/d2vsource/releases/tag/v1.2 works fine.