I updated to 3.1.2 today, and now I can't embed video. I'm using the exact same method as for 3.1.1, just pasting my code into the HTML, and nothing doing.
Also, if I go to posts that have already successfully embedded video, I can't update without losing the video. 3.1.2 just doesn't like it.
Problem is, all of this is work-related content, so the providers are not on WP's approved lists.
Help greatly appreciated.