Custom WP Query not working properly on Custom Shortcode

Hello all,

I’ve recently created a custom shortcode to retrieve custom post type (loisirs) filtered by a custom taxonomy called “categorie”
My custom wp query works great everywhere except on the rendered automatic mail.

The problem is, when I filter by taxonomy, the query shows no results, but as soon as i remove it, it shows all posts of the custom post type “loisirs”.

This is really strange, here is my code:

function mailpoet_shortcodes_custom_filter( $tag_value , $user_id) {

    if ($tag_value === 'dernieres_activites') {

        $replacement = do_shortcode('[get_latest_loisirs]');
    }
    return $replacement;
}
add_filter('wysija_shortcodes', 'mailpoet_shortcodes_custom_filter',10 ,2);
// $args of custom query
$args = array(
        'post_type' => array('loisirs'),
        'tax_query' => array(
            'relation' => 'AND',
            array(
                'taxonomy'  => 'categorie',
                'field'     => 'slug',
                'terms'     => array('culture','fun','sortie'),
                'operator'  => 'IN',
            ),
        ),
        'post_status' => 'publish',
        'order' => 'DESC',
        'orderby' => 'date',
        'offset' => 0,
        'posts_per_page' => 5,
        'paged' => (get_query_var('paged')) ? get_query_var('paged') : 1,
    );

when I remove this bit of code :

array(
                'taxonomy'  => 'categorie',
                'field'     => 'slug',
                'terms'     => array('culture','fun','sortie'),
                'operator'  => 'IN',
            ),

every thing works well, but this is not what I want :/

https://wordpress.org/plugins/wysija-newsletters/