1 Reply
Gerry Wasiluk

Is the first course with a MP4 video that you've tried?

If yes, the server's MIME type may need to get added:  https://articulate.com/support/article/mp4-videos-require-a-mime-type-on-your-server-to-play-properly

If you have other courses already with MP4's showing correctly, then I try running the original MP4 through Replay 360 and creating a new MP4 for Storyline insertion.