This problem is Drupal-specific (it doesn't occur in the CSS Framework). So it may need to be addressed in cwd_base or some other aspect of how it's generated by Drupal. But depending on what the actual issue is, it's still possible it would be fixed by making a change to the front-end JavaScript from the Framework.
First gallery slide doesn't render properly, in "viewer with thumbnails" gallery style.
March 2023 update: Bug happens in Chrome and Firefox, every time you load the page. When you click through the gallery, the videos get loaded.
Note from Tone:
More conversation in original issue thread: https://github.com/CU-CommunityApps/CD-demo/issues/93
Outdated notes --
NOTE: Bug only happens under very specific circumstances.