I copied this from another ticket so you have another report of it:

“Background video for Container widgets load properly on preview cards that were loaded on page load, but the video doesn’t load at all for preview cards loaded from map marker or “load more”, etc.”

I’m having this issue as well – I’ve tried to use next/previous, changed the number of cards I display on the first archive page, and also have tested with “load more”. Any of the cards that do not display on the first load of the page, will appear, but without the video showing.

See the link below.

Also – I retried upgrading to the latest voxel version on this website (where I was seeing a critical error) and on the new reload, the error was gone. So this site is on the latest version.