I had this happen on my f10 and it is pretty well documented on the f10 forum. Cause....who knows. Solution....turn car off and let it sit for a few minutes to allow whatever fault code causing problem to clear (5 minutes?) and then all is well. Basically a reboot solution.
2012 535i, black sapphire metallic, oyster/black dakota, premium, premium sound, technology, sport, sport auto, heated front seats.