I'm trying to feed Hybrid a blu-ray by choosing the PLAYLIST folder of the BD. When doing so Hybrid finds 0 usable mpls files (on any blu-ray I tried). But this worked in the past and I think it started happening only after I changed some Filterting->Deinterlace settings and the default output path and saved the settings.
Found the problem, will send link to you a hopefully fixed dev version in ~20min.
Note that you should resave your defaults and you will if you use Vapoursynth and use saved Vapoursynth profiles you will need to reset the filter order after loading such a profile and resave it. (FilterOrder changed and some elements were replaced by others.)