Archive page not working

if you check the admin for these fake authors, you’ll see they have no posts (wp-admin/users.php)

this thread didn’t cut it in my use case: https://wordpress.org/support/topic/plugin-co-authors-plus-co-author-posts-not-showing-in-author-archive

but this snippet did:

function my_fix_the_authors_page($query) {
  if ( !is_admin() && $query->is_main_query()) {
    if (is_author()) {
      $query->set('author_name', $query->query['author_name']);
      $query->set('post_type', array( 'post', 'cpt-one', 'cpt-two' ));
    }
  }
}
add_action( 'pre_get_posts', 'my_fix_the_authors_page', 1 );

(to show all posts from different post types of this user as an author OR as a co-author)