Some streams don't play in v12 nor v13 but play fine in v11.1 and lower.

[what-a]

Here are some examples of streams that work in version 11.1 and lower, but do not work in version 12 nor 13:
https://cdn1-9p.teleuptv.net/f4441462-c21e-4269-9721-84d8cbd93ebf/index.m3u8
https://cdn1-9p.teleuptv.net/fad91b41-322d-4d6e-a427-551e8d8199bb/index.m3u8

My guess is that it has something to do with the User Agent setting not working properly in v12 nor v13.

[4gray]

Thanks for the user agent hint.
That's most likely the problem, as the user agent defined at playlist level is now not taken into account. Unfortunately I missed this detail during refactoring, I'll try to fix it soon.

[what-a]

This bug still exists in version 0.16.0
Also, in 0.16.0 the playlist user agent details vanish upon refreshing a playlist.
...and the "Auto-update" check-mark (under Playlist details) will vanish if you manually refreshing a playlist.