Video Universal Media Player won't play YouTube videos

Our client has UMP Pro and we used it to play videos from YouTube. But at some point YouTube just stopped working and throws an exceptions when you try to play them. I've done some debugging and it seems like somesthing has changed on YouTube end,and UMP doesn't consider those changes. I've written to e-mail support but the author hasn't answered. Is there any chance someone familiar with the problem?

 

i am having exactly the same problem.
only youtube url's seem to be broken.