function kbpp_ensure_brochure_page(){
 $page=get_page_by_path('brochure-templates',OBJECT,'page');
 if(!$page){kbpp_create_pages();$page=get_page_by_path('brochure-templates',OBJECT,'page');}
 if($page&&get_post_meta($page->ID,'_wp_page_template',true)!=='page-brochure-templates.php')update_post_meta($page->ID,'_wp_page_template','page-brochure-templates.php');
}
add_action('init','kbpp_ensure_brochure_page',31);
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://kbdesignsolutions.com/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://kbdesignsolutions.com/wp-sitemap-posts-post-1.xml</loc></sitemap><sitemap><loc>https://kbdesignsolutions.com/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://kbdesignsolutions.com/wp-sitemap-taxonomies-category-1.xml</loc></sitemap><sitemap><loc>https://kbdesignsolutions.com/wp-sitemap-users-1.xml</loc></sitemap></sitemapindex>