Failed to gather sources while using YouTube as exclusive source

[JetQuest]

I was attempting to download a Spotify playlist and encountered a situation similar to that mentioned in issue #406. I followed the advice provided and set the program to rip from YouTube exclusively (as opposed to yt music). Some of the songs downloaded fine, but many encountered an error whilst trying to gather sources. After re-running the program, some of the previously failed songs downloaded successfully but many still did not.

Things to note:

• Lots of the songs that are failing are quite popular such as "m.A.A.d city - Kendrick Lamar" and should not be lacking useable sources.
• The command I am using is as follows: freyr --concurrency queries=2,downloader=4 --no-tree --sources="!yt_music" spotify:playlist:XXXXX