You can run into issues with "Team Songs" when combining the use of the Apple Safari browser and Google Drive (for MP3 hosting). 

Our primary recommendation to prevent this issue is to use the Google Chrome browser.

If the use of the Chrome browser is not an option and you must use Safari, you can do one of the following to resolve this issue:

  1. Utilize Dropbox instead of Google Drive for MP3 hosting
  2. In Safari: Select "Safari > Preferences > and then select the Privacy tab"
    Uncheck the "Prevent cross-site tracking" box.