mrpaint

I’m using version 2.7.1

As I look in ./wp-includes/classes.php:145

$rewrite = $wp_rewrite->wp_rewrite_rules();

Look in ./wp-includes/rewrite.php:1598

function wp_rewrite_rules() {
		$this->rules = get_option('rewrite_rules');
		if ( empty($this->rules) ) {
			$this->matches = 'matches';
			$this->rewrite_rules();
			update_option('rewrite_rules', $this->rules);
		}

		return $this->rules;
	}

So, they only use the cached rules. If we want to use our rules, we should update the cache. For example, I update in my options page when $_GET[‘updated’] == ‘true’

PS: I also call add_rewrite_rule in init in case other plugin update cache later ??

Hope it helps