Action triggering twice?

I found some suggestions in this forum for using hooks, I am trying to register users to a learndash course based on the form id. This DOES work correctly however… it is being triggered twice each time I register a user with that form and I can’t figure out why.

add_action( 'user_registration_after_register_user_action', 'add_user_to_course_from_form', 10, 3 );
function add_user_to_course_from_form( $valid_form_data, $form_id, $user_id ) {
	if( $form_id == '60'){
		
		$course_ids = [19];
 
		// Add user to each course
		foreach ( $course_ids as $course_id ) {
			ld_update_course_access( $user_id, $course_id, $remove = false );
		}
	}
}