functions.php

<?php

add_action('blocksy:pro:content-blocks:pre-output', function ($id) {
	if (! class_exists('Kadence_Blocks_Frontend')) {
		return;
	}

	add_action( 'wp_enqueue_scripts', function () use ($id) {
		$k = Kadence_Blocks_Frontend::get_instance();
		
		$post = get_post($id);
		$k->frontend_build_css($post);
	}, 20 );
});