related products always the same?

hi，i updated to the latest woo commerce 2.4.6 , it still hasn’t solved the problem yet. Anyone can give some advice?

Thanks a lot.

hi，i found the information in this post. if anyone interested.
https://www.ads-software.com/support/topic/related-products-by-tags

I wrote an article talking about this:

https://origgami.com.br/wp-admin/post.php?post=2264&action=edit&message=1

Basically you can put this in your functions.php

function fixRelatedProducts($args){
    unset($args['post__in']);
    global $post;
    $terms = get_the_terms( $post->ID, 'product_cat' );
    $firstTermID = $terms[0]->term_id;
    $args['tax_query']=array(
        array(
            'taxonomy' => 'product_cat',
            'field'    => 'term_id',
            'terms'    => $firstTermID,
        ),
    );
    return $args;
}
add_filter('woocommerce_related_products_args','fixRelatedProducts');

Actually this is the url I was talking about:
https://origgami.com.br/blog/corrigindo-os-os-produtos-relacionados-do-woocommerce/

And forget about that solution. This is better:

function rand_related_products_query( $query ) {
$query['limits'] = ' ORDER BY RAND() ' . $query['limits'];
return $query;
}
add_filter( 'woocommerce_product_related_posts_query', 'rand_related_products_query');

Thank you for the solution ??