Can you share Unlisted YouTube videos via bookmark?

[gpcroft]

I’ve read a previous post about Private YouTube videos not being sharable via the /Bookmark feature (this makes total sense)

Error when adding private youtube video via an editor card

I am currently building out a new site along with a youtube channel. I wanted to keep everything private until I had completed all of my content. Unfortunately, if a youtube video is marked as private you are unable to include it in a blog post when using the new V2 youtube card. When you go to add the video you will receive an error: “There was an error when parsing the URL.” The workaround is to set the video on youtube to “unlisted” instead of private. I hope this tip will be helpful …

But I can’t even get Unlisted YouTube videos to display properly using the /Bookmark feature at the moment.

Every time I post one I get the error saying it won’t work.

(Public ones work fine.)

Is sharing Unlisted YouTube videos not a thing? (Other than as a boring old link.)