[Cin] Cutting mkv causes video to stop at cut points

[Igor BEGHETTO]

Stefan as you know MKV file is a container.
Could you write here the info about that file using "MediaInfo" or 
"ffprobe", please?
I downloaded the "sample_1280x720_surfing_with_audio.mkv" from 
https://filesamples.com/formats/mkv and tested on 
"CinGG-20221031-x86_64-older_distros.AppImage" in UnbuntuStudio_16.04.
It seems to work fine, cutting here or there, but it is an mkv container 
with h264 inside.
If/when you have time, could you try it, in your System and 
Cinelerra-GG? Thanks!

IgorBeg