I imported a mp4 video into Content Browser and created Media Sound Wave from that asset and dragged it into level. It works fine there without issues but once i close and restart the editor the sound never plays. I have to delete it from the level and Content Browser and recreate it from the Media asset again to make it work.
Hey ryanjon2040,
Currently the Media Player has compatibility issues with .mp4 as well as H.264 file types. You can find our documentation on this feature which provides an explanation of the current limitations and its basic functionality.
Media Framework
Try using a different file type to see if that resolves your issue. Let me know if you have any questions or need further assistance.
Thank you,