base "preview" is not considering experimental cut

[Bartoloni]

You could, open the file in another tool, determine the frames you want to cut at, configure Hybrid to cut by frame (not timestamp) and try that.

yes it was wath i was doing right now

BTW i can say by sure that Hybrid can CUT correctly(for what i can see) headers "outside" keyframes on MKV files... for example this thing can't be done with "losslesscut".. that was the tool i used before discovering Hybrid