Problem WCPS when I save the settings

Hi,

I've a problem when I save the option in WCPS plugin.

Before save options the images is very cool and with a good resolution.

When I go to Query Products and I choose a categories and then save, the front end show wrong, with  grainy and blurry images. --> http://prnt.sc/dzprlg

Happen this --> http://prnt.sc/dzpudl

You've any ideas of this problem ?

Thanks