If you've added external media items (video, images), you must also add copyright details when uploading. Review the Copyright Considerations for H5P Interactives page for more information.
Ashbourne, H. (2021, April 22). Adding metadata and media copyright information to your H5P interactive. Conestoga Library Services. https://web.microsoftstream.com/video/9e1c68a6-30d9-4919-84bb-b87fe9d9805d