mobile

hi, today i noticed that when i pull down the notification par the quick connect and s finder disappears...and when i play music through the stock music app....and i pull the notification par down the notification for the music player is not fully shown...some of it is hidden under the notification par....and on the lock screen the widget for the music player is covering part of the clock...and when you try to press on anything on the widget it doesnt respond...its not freeze..its just like you didnt really press it....i restarted the phone and everything now is back to normal....but its a weird thing....