Would someone like to check this for me please to make sure it isn't me? On the QA site (or even here on moodle.org) when I click the moodle media icon and choose a youtube video -the search and thumbnails work fine but when I click one to select it, I get nothing (or almost nothing) in the preview box. If I just click to add it then it works fine, but previously you were always able to preview it first. I have tried in both Chrome and Internet Explorer 9. Thanks
Mary, thanks, another great spot that is indeed a bug. I'm raising it in tracker and I'll add you as a watcher.
Thanks Tim for creating an issue report - MDL-33982. (Just adding a link to it in this discussion so that others can watch, comment and/or vote for it to be fixed.)