Bug when partially downloading to YouTube with SponsorBlock option

[Sablior]

I have a video whose timeline looks like this:

https://www.youtube.com/watch?v=BikgCY-tJhk

I want to download this segment (white line) minus the SponsorBlock (green line):

I expect to receive a single file consisting of segments (blue line):

But I get one file consisting of segments (blue line + orange line + blue line):

[jely2002]

Hi! Just letting you know that I was able to reproduce this issue. It seems to be a yt-dlp issue (the underlying tool we use). They don't take into account downloading only part of a video and sponsorblock removing parts of the video at the same time. That means the sponsorblock timestamps get shifted and the wrong thing gets cut out. Resulting in exactly what you're seeing.

I'm going to open an issue for this in the yt-dlp repository with the hope of submitting a patch on their side.

For now there isn't a lot we can do about this sadly. You can of course download the whole video with only sponsorblock removal on, so the sponsor sections still get removed. Then you can use another software to trim the video further.