Category in permalink

Hi,

I try to have the category of my custom post type before the post title in the permalink by putting /%category%/%postname%/ in permalink options, but it’s not replaced by the category. The permalink stays “stucked” as https://www.mywebsite.com/%category%/name-of-my-post

here is my custom post type code:

register_post_type('artists', array(
  'label' => __('Artists'),
  'singular_label' => __('Artist'),
  'public' => true,
  'show_ui' => true,
  'capability_type' => 'post',
  'hierarchical' => true,
  'menu_position' => 4,
  'supports' => array('title', 'editor'),
  'rewrite' => array('slug' => 'artists', 'with_front' => false),
  'menu_icon' => 'dashicons-id-alt',
  'has_archive' => true,
  'taxonomies' => array('category')
));

https://www.ads-software.com/plugins/custom-post-type-permalinks/