General Wierd Lock Screen Issue

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http://androidforums.com – Hello everyone, I hope you can help me with this issue. I've had my S3 for over a year and I have the lock screen configured to use the pattern lock screen. Lately I noticed that the default lock screen (with Clock and lock at the bottom of the screen) appears and after swiping the lock, the pattern lock screen appears. Does anyone know how can I disable the default lock screen?? I am running android version 4.1.2.Thanks in advance. (General)