Order by custom meta key – works in catalog but not in categories/subcategories

Hi,

I’ve added a custom filter as follows:

add_filter( ‘woocommerce_get_catalog_ordering_args’, ‘custom_woocommerce_get_catalog_ordering_args’ );
function custom_woocommerce_get_catalog_ordering_args( $args ) {
$args[‘orderby’] = ‘_stock_order’;
$args[‘order’] = ‘ASC’;
$args[‘meta_key’] = ‘_stock_order’;
return $args;
}

this works fine in catalog but when I go to a category/subcategory the above criteria gets ignored , any ideas how to get it working in this case?

Thanks a bunch,
Radu C