Thought I would share this.
Before, when I would go to post a youtube video I'd just use the "share" directly below the youtube video I wanted to use. (see red arrow) Simply copying and pasting that link it would automatically embed the video on the forums.
Recently, it has not. At first I thought it was just the video, so I tried others from various channels and the same result, just a link to the video.
So, if you want to post a youtube video and embed it into the post, just use the youtube link in the address bar. See blue arrow.
https://youtu.be/9akCInPHE_A - share link now just links
- long link in address bar auto embeds
Just remember you cannot embed more then 2 videos in one post, each additional one will just be a link.