OK, so I just looked more closely at this and understood why some channels do not work.
On YouTube there are apparently two types of channels possible. The URL will contain ".../user/..." or ".../channel/..." depending on the type.
The add-on works perfectly with the "channel-type", however I have not been able to add the "user-type" to the list of channels to check.
I don't know if this can be fixed/resolved in future version as this might very well be related to the YouTube API and its capabilities, but I just thought I might let you (the developer) know.
OK, so I just looked more closely at this and understood why some channels do not work. On YouTube there are apparently two types of channels possible. The URL will contain ".../user/..." or ".../channel/..." depending on the type.
The add-on works perfectly with the "channel-type", however I have not been able to add the "user-type" to the list of channels to check.
I don't know if this can be fixed/resolved in future version as this might very well be related to the YouTube API and its capabilities, but I just thought I might let you (the developer) know.