<?php do_action( 'llms_after_builder', $course_id ); ?>

		</div>

		<?php
		$llms_builder_lazy_load = false;
		self::handle_post_locking( $course_id );

	}

	/**
	 * Process lesson detachments from the heartbeat data
	 *
	 * @since 3.16.0
	 * @since 3.27.0 Unknown.
	 *
	 * @param array $data Array of lesson ids.
	 * @return array
	 */
	private static function process_detachments( $data ) {

		$ret = array();

		foreach ( $data['detach'] as $id ) {

			$res = array(
				// Translators: %s = Item id.
				'error' => sprintf( esc_html__( 'Unable to detach "%s". Invalid ID.', 'lifterlms' ), $id ),
				'id'    => $id,
			);

			$type = get_post_type( $id );

			$post_types = apply_filters( 'llms_builder_detachable_post_types', array( 'lesson', 'llms_question', 'llms_quiz' ) );
			if ( ! is_numeric( $id ) || ! in_array( $type, $post_types ) ) {
				array_push( $ret, $res );
				continue;
			}

			$post = llms_get_post( $id );
			if ( ! is_a( $post, 'LLMS_Post_Model' ) ) {
				array_push( $ret, $res );
				continue;
			}

			if ( 'lesson' === $type ) {
				$post->set( 'parent_course', '' );
				$post->set( 'parent_section', '' );
			} elseif ( 'llms_question' === $type ) {