I reply to myself for more accurate advice and for the community

I take a look at td_data_source.php trying to create a new sort case. I see that in the lines

  //init the array
        $wp_query_args = array(
            'ignore_sticky_posts' => 1
        );

The sticky posts are ignored , so i test with a zero parameter and it seems to work now

Please would you tell me if this modification will cause disorder ??

thanks in advance.