The music that we use when we create video content for you is always royalty-free and does not carry any copyright. That said, sometimes Facebook is overly-cautious and warns you if their system thinks our videos might contain music that belongs to someone else. Here's what to do if Facebook has flagged one of the videos we created for you:
Long story short, whatever action Facebook takes, we want you to be confident that we've got your back and all music we use is copyright-free!