Google is constantly making changes and breaking their products in one way or another. Different stories.
I Just got a Decklink Mini Recorder and use it to stream video through Skype. Skype happens to have all the options to accept a video stream and handle it. Google Hangout does not work, just a black screen. The UI has no decent options or more importantly any indication, info or anything that someone can try and solve the problem. Terrible software design, change implementation and communication as far as user experience goes.