Variation swatch and wpml

Good morning,

for the main language all the swatch images are shown, while in the other languages even having inserted the images for each language they are not shown and in the “background: url() no-repeat scroll 50% 50% rgba(0, 0, 0, 0);background-size: cover;”

Are there any other steps to take for languages?
The labels all come out correctly, but the images don’t