Some of my posts containing links or embeds for video produce entirely blank posts, both in preview or if published.
Specifically, all other text in the post vanishes. Apart from the headline, no HTML is generated. This includes text above and below the video link/embed.
This does not happen n all embeds and all links to video, but it is happening with increasing frequency.
Is this a known problem? What is going on that prompts WP to fail to generate any HTML and to fail to include the rest of the post?
I'm using no plugins to handle video.
Here is an example of a link that produces that fault: