Unfortunately, we do not process files from music streaming services like Amazon Music, Apple Music, Deezer, Tidal, Spotify, SoundCloud Pro Unlimited, or YouTube.
So, if it is a private URL, Moises will not be able to process it.
To upload a song via a link, the URL needs to be public and available in the United States, such as videos, audios, Dropbox public files, or Google Drive files.
You can see an example of how to separate tracks by importing a URL here.
If you are still having trouble with this, please contact our support team at help.moises.ai.