It used to be that I could play them all right in the DU thread.

Now I sometimes see a message like "medium could not be displayed" in a video sized blue box. If I click on the text of the tweet, it will take me to Twitter where I can watch the video.

Sometimes the video plays in the DU thread.

There doesn't seem to be any way to tell in advance what will happen. This started a couple few weeks ago.

Does anyone know why this is happening?

If you don't have access to a TV, here are a couple YouTube links:

House Judiciary Committee (has scrolling viewer comments - very distracting):


C-SPAN (no comments):