Impossible to display a variation gallery Woocommerce with several plugins


I simply want to create a gallery for product variation, I’ve tried with plugins : " [Additional Variation Images Gallery for WooCommerce], [Variation Images Gallery for WooCommerce], etc.

I create vairations for product, and create a gallery in the variation, record the variation, record the product.

But the gallery not displays for variations, only the first image of the variation.
I’ve the7 theme.