Woocommerce use thumbnail issues child storefront theme

[admin]

I have created a child theme based on Storefront Woocommerce 3.3. Without adding support image. 3500 images have been uploaded and only the original size exist

I added support theme in function and tried to create the thumbs via plugin

function iconic_modify_theme_support() {
    $theme_support = get_theme_support( 'woocommerce' );
    $theme_support = is_array( $theme_support ) ? $theme_support[0] : array();

    $theme_support['single_image_width'] = 320;
    $theme_support['thumbnail_image_width'] = 150;
    $theme_support['gallery_thumbnail_image_width'] = 50;

    remove_theme_support( 'woocommerce' );
    add_theme_support( 'woocommerce', $theme_support );
}

add_action( 'after_setup_theme', 'iconic_modify_theme_support', 10 );

when I use force thumbnail regenarate for an image produce
in database wp_option
woocommerce_thumbnail_cropping, uncropped,yes
thumbnail_crop,1, yes

100x100, 102x300, 150x150, 300x883 shouldn't 17x150 be created?

the 100x100 have been created because of wordpress (and not woocommerce) setting? is it possible to cancel that?

Front page, archive page, single product and in admin's dashboard products list load (src) the file of full image (for example 700x400) the image will be displayed in lower dimensions ( 150x100 for example) but it will load the big file image.

Server in upload folder doesn't have same image in different sizes ( image.jpg , image150x100.jpg image50x30.jpg )

I dont have anything in function.php about the size of image

in Single product page image is retrieved from woocommerce

do_action( 'woocommerce_before_single_product_summary' );

in Archive product I get the image

                if( has_post_thumbnail() ){
                    the_post_thumbnail( 'shop_catalog', array( 'class' => 'visible_photo scale-with-grid' ) );
                } elseif ( wc_placeholder_img_src() ) {
                    echo wc_placeholder_img( 'shop_catalog' );
                }

<strong>Is it possible to use gallery_thumbnail in admin's product list ?</strong>

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