The background motion effect, called parallax effect, moves the background image of your Samsung Galaxy S6, so that you always look from a 90° angle to it. This effect is quite nice.
Nevertheless you may have noticed after the latest Firmware Update the following on your Samsung Galaxy S6:
Since the update the background motion effect doesn’t work, even though it is enabled on the Samsung Galaxy S6.
Surely you are wondering now whether you can resolve this error. The answer is "No". Unfortunately, the cause of this is the recently published Stability update from Samsung.
It is hoped that as soon as possible a patch is made available, which fixes this at the Samsung Galaxy S6.