Hi Andrew,

Thank you very much for reporting this issue. As from my inspection, we missed out the styling for responsive video for other editor.

You can applied this CSS code to make your video responsive, please add this code to your own Joomla template CSS stylesheet:

div#fd.eb .eb-responsive-video,

div#fd.eb .video-container {

  position: relative;

  padding-bottom: 56.25%;

  padding-top: 25px;

  height: 0;

}

div#fd.eb .eb-responsive-video > .video-container {

  position: static;

  padding: 0 !important;

  height: auto;

}

div#fd.eb .eb-responsive-video object,

div#fd.eb .eb-responsive-video embed,

div#fd.eb .eb-responsive-video iframe,

div#fd.eb .video-container object,

div#fd.eb .video-container embed,

div#fd.eb .video-container iframe {

  position: absolute;

  top: 0;

  left: 0;

  width: 100%;

  height: 100%;

}

I already pushed this fix into our repo and will be available in next minor release.

Hope this help, thank you very much