Today for the first time my N5ii (3.1EN) suddenly paused for no reason. It was in Audio priority mode and playing a flac file (44.1). The reader was in my pocket and I'm sure nothing pressed the buttons or the screen. After several seconds the playing resumed without any intervention from me. I'm sure that is not the flac file: I played the same file yesterday without problems. The only thing different than other days is that the reader had just been turned on.