Originally Posted by ddogishere
It looks like it's a widget problem, try uninstalling & disabling any lockscreen widget to see if that will rectify the problem.
I did disable the Multiple widgets from lock screen now it's ok, but i don't have the music widget. So, now, when i play music and press the power button to turn on the scren, the background is the album cover, but i see the clock/weather widget(normal). So i think the problem is on the multiple widget/music widget. If i don't find any solutions, i will reset my device and see if it works.