select_tree for hierarchical taxonomies broken

Hi,

since last update(s), the select_tree is broken for taxonomies.

The checkbox_tree is ok but the select tree isn't 🙁

Screenshot before update

Screenshot after update

array(
                    'name'             => __( 'Sous-titre' ),
                    'id'               => "{$prefix}subtitle",
                    'type'             => 'text'
                ),
                array(
                    'name'             => __( 'Fichier' ),
                    'id'               => "{$prefix}file",
                    'type'             => 'file_input',
                    'max_file_uploads' => 1
                ),
                array(
                    'name'             => __( 'Catégorie'),
                    'id'               => "{$prefix}taxonomy",
                    'type'             => 'taxonomy',
                    'field_type' => 'select_tree',
                    'multiple' => false,
                    'taxonomy' => 'fiches_category'
                )

Any clue ? 🙂

I checked with a backup and when I update all except MetaBox, all is fine and when I update MetaBox Plugins, I have the problem.

I'm on WordPress 4.9.7 with WPML (2.3.5)