Some Youtube playlists doesn't work, "Found 0 videos"

[christofferholmstedt]

So I've experienced this error before but wasn't to bothered with it during the last fall but now I came across it again so tried to look into it a bit more.

./youtube-dl -v http://www.youtube.com/playlist?list=PLBB231211A4F62143
[debug] youtube-dl version 2013.02.02
[debug] Python version 2.7.3 - Linux-3.2.0-37-generic-x86_64-with-Ubuntu-12.04-precise
[debug] Proxy map: {}
[youtube] PL BB231211A4F62143: Downloading page #1
[youtube] PL BB231211A4F62143: Found 0 videos

Though when trying with another playlist it works e.g.

./youtube-dl -v http://www.youtube.com/playlist?list=PL56421C9A51D1F427
[debug] youtube-dl version 2013.02.02
[debug] Python version 2.7.3 - Linux-3.2.0-37-generic-x86_64-with-Ubuntu-12.04-precise
[debug] Proxy map: {}
[youtube] PL 56421C9A51D1F427: Downloading page #1
[youtube] PL 56421C9A51D1F427: Found 6 videos
...the script continues here...

Is there any more option I can run with for more debug information or anything else I can try to find what is causing this?