I encountered an issue while toggling the FullScreen mode more than once. This can be easily reproduced by visiting the demo page using Firefox.
Step 1: Click on the FullScreen control --- results in the video enlarges to fit the browser, but the video stops playing.
Step 2: Click on the FullScreen control again -- results in the video restores back to the original size, again the video stops playing.
Step 3: attempt to click on the FullScreen control does nothing.
Once, I also noticed that while in FullScreen mode, the Silverlight Default-controls and HTML5-overlay controls both show up at the same time.
It seem to work fine in other browsers. Also noticed another minor thing - while loading the demo page, the underlying default controls show-up briefly before getting hidden.
Is this a known issue ?