Which version are you now running?
Regardless, stream downloads will not work with Spotify as they have built in protocols that block capturing from programs like Jaksta.
As a workaround, we have a new setting called Audio Capture Mode in the new version that records the audio being sent to the speakers rather than the stream itself.
But if nothing is capturing from YouTube then will be a separate issue.
From Liam @ 16 Oct 2017 10:10