Had this same problems on both my Surface devices. So, went to search the web. Found this thread and got frustrated... This is a well known problem with the Media player and Microsoft just won't even try to solve it. They sell you the Surfaces for thousands
of $, advertising them as if they were the best of the best and then a big disappointment comes...
I think this all thread is a big farce and an epic fail and disgrace for Microsoft Customer Service.
As from answer #1 it is clearly seen, that they are familiar with the problem very good and they know that it's 100% Microsoft's bug. But the world will end before they will dare to admit it.
This is why they are sending you to do tons of useless and irrelevant things from checking updates to completely re-installing your system. In a hope that at some point you'll decide to give up.
SHAME ON YOU MICROSOFT Customer Service, for treating your customers this way. Epic Fail!