Display issue on lock screen when using ripple

I have recently bought an S3 and I noticed that the display is weird on the lock screen when using the ripple effect.

It's most apparent when using a black wallpaper. If the ripple effect is on I have what I can only describe as "milky" lighter black blotches on the right of the screen. If I turn the ripple effect off it is fine.

Has anyone else noticed this problem?

I'm using XXDLJ4 firmware

Sent from my GT-I9300 using xda app-developers app