All my images are 1024X1024 HQ images. When magneto move the imaged to cache folder it resize it and make i get smaller images with white frame all around it (see images "before"). I try to fix it by changing the etc/view.xml file but same problom. to fix it i have copy all images from /pub/media/catalog/product/ TO /pub/media/catalog/product/cache/b3b166914d87ce343d4dc5ec5117b502/ same location the images show on . This have fix the problem BUT after 24H images go back to same size with the white frame.
Can you understand what making it ? how it can be that after 1 day the cache images change back again?