Samsung S3 Wallpaper Scrolling Problem.

[Waq1]

Hi all i updated my wallpaper yesterday and was just changing up my S3 with widgets and what not then as i scrolled on touchwiz this is what happens:

I get these big pixels which is very odd.

What it should look like :

And no i have not rooted my phone or anything.
Model Number: GT-19300
Android Version : 4.1.2

Thanks!