Center button on headphones not working?

[Nacket]

I'm running 7.0.1 on my 5S and the center headphone button doesn't seem to be working. The volume controls work perfectly fine and I'm having this issue on multiple pairs of headphones. Is anyone else having this problem and have a possible fix?

 

[Shan S.]

No fix, but I noticed the same thing with my Bluetooth stereo headphones yesterday.

Exact same issue and I am also on a 5s and 7.01. The center button does not respond but volume works.

 

[hafr]

A few days ago, I noticed I couldn't start music by pressing the middle button as you could before. I had to start the music via the phone to be able to pause/play with the middle button.

 

[jonasdamn]

With iPhone 5 and iOS7 middle button works but it takes much more time to start music than with iOS6