As mentioned elsewhere, sometimes when people post YouTube links directly, I get a blank area.
When I want to post a relevant YouTube link, I’ll post it directly, but I’ll also put the link in quotes so it can be seen consistently.
This fluke comes and goes, and I don’t know the magic switch that will let me see what YouTube links others post.
Sometimes quitting Safari completely helps, but not always.
Thank you for your efforts and support.