Videos are working again now but I will leave the info below in place just incase they disappear again in the future.
Until WGT comes up with a solution for our videos not showing up, I've cobbled together some javascript. Hopefully this will make the embedded videos, which currently show as one or two black vertical bars, temporarily show up in an iframe window. I've done this in Chrome so there's a chance it won't work in other browsers, but there's no harm in you trying it, sorry about that. (You can use this in any thread/profile page where an embedded video isn't showing).
Select and copy the code in blue below. Press [F12] to open the developer tools and click the ELEMENTS, INSPECTOR or DOM EXPLORER tab and allow the page to load. Then click the CONSOLE tab and paste the code in at the prompt and hit enter, or click the green play button if using IE, then close the dev tools window [X].
To save repeatedly pasting in the code, you can recall a previous paste by pressing the up arrow on your keyboard whilst in the CONSOLE. Ensure you allow the webpage to load in the ELEMENTS, INSPECTOR or DOM EXPLORER tab before clicking the CONSOLE tab.
var num = document.getElementsByTagName("embed").length;for (i=0; i<num; i++) {var wholetag = document.getElementsByTagName("embed")[0];var vidID = wholetag.src.match(/.{11}(?=&|\?)/);wholetag = "<iframe width=\"434px\" height=\"244px\" style=\"border:5px inset white;box-shadow:0 0 1px #000\" src=\"http://www.youtube.com/embed/"+vidID+"\"></iframe>";document.getElementsByTagName("embed")[0].outerHTML = wholetag;}