Android lock screen controls behind the clock

[jotrio]

Hi everybody'

First, I have a galaxy s4 mini with android 4.4.2

There is the problem. I activated the android lock screed for Poweramp. With my galaxy s3 there were no problems. When I was playing music with Poweramp, the control was replacing the clock on the lock screen.

Now, with my galaxy s4, no control when I play my music. Sometime When I put the screen on, the controls appear for few seconds then disapear. Like the control where hidden by the clock.

Is there a way to make it work. Thank you!