@thespartner this is done by intention and the video is hidden through CSS on mobile devices and an overlay image is displayed instead.
I have the same problem and I can see that the iframe section is hidden when changing from 800x600 window to a mobile one.
However, I don't know which lines should I change on my theme.scss.liquid.
Could you help me?
@CopelandAudio the video is not displayed by intention and not as a result of an issue. You might want to reach out to the theme developer support.