this is my 3rd pair of bose 700. with the prior 2, when I pressed the noise-cancelling button for 1 second it lowed the music and activated full ambient sound until I press another button. With the latest pair I have, it doesn't work. literally, when I press the button for 1 second it does nothing. @bose another 1.4.12 issue? or maybe this third pair that I have is also faulty?