Preview tracks, or watermarked tracks, cannot be published in any projects. A sync license is required to use the track in any video project.
A watermarked track can be used in the editing/approval process before you finalize a project, but publishing any project without a license is strictly prohibited and considered copyright infringement. Once a license is acquired, you will then be given access to the unwatermarked version of the song.
If you have any additional questions about preview tracks and watermarked songs, please contact us for more information.