Music bar not appearing

[ZeroAE]

When I press the volume button on my Lumia 920, instead of appearing the song Im currently listening to, with the previous, next and stop option it only appears the volume.
Did they take that feature out? Because it was on my WP7. Or its a bug?
Thanks

 

[juanitoriv]

Its a bug. Its there on WP8. At least on my 8X..

 

[ZeroAE]

You were right!
Just reset my phone and now it works perfectly.
Thank you!

 

[Daniel Ratcliffe]

Sometimes the now playing clears itself automatically. I don't know the algorithms involved in when it happens, but it happens somewhat randomly.