I am unable to successfully embed (certain) YouTube URLs into my theme in the back end, with the intention of having viewable video clips on the front end. Not sure if this a WordPress issue or an issue with the video URLs themselves. I am using Divi, but have confirmed the problem is the same with Gutenberg and the Twenty Twenty theme.
All videos in question play fine on YouTube itself.
If I choose a random trending video from YouTube, the embed works fine. If I use one of my client's videos, nothing shows up on the front end.
Example probem video from my client: https://www.youtube.com/watch?v=rLZhyfkgHvs
Example working video, a random video chosem from youTube: https://www.youtube.com/watch?v=B3MDJsggfDg
Any ideas what might be going on?
**EDIT: Note that the issue is only for client-created videos. Random YouTube videos embed and play fine.