I know there are hundreds of posts like this already and I've trawled through all of them, but I really can't embed any videos on my site anymore. I used to be able to paste the code or URL, but now nothing shows up. The link below demonstrates this:
I am always in html mode, I've tried all forms of the code, and I've tried to attach media. I've tried on both a post and a page. Do I need a plugin?