No sound after starting movie

Hi there,
After the latest update (7.1) all movies start without sound. I have to go to (when the movie plays) swipe down > sound > select (any available) soundstream to get the sound started ?! This was never the case.
I just use hdmi out to a normal stereo tv. Is there a solution for this problem ?
Thanks in advance…

Alex

A post was merged into an existing topic: Apple TV Audio Silent Until Rewind (w/ Wireless Audio Sync enabled)