Yoast SEO Genesis https://wp.me/p1lTu0-ith

class-genesis-breadcrumb.php

protected function get_post_crumb() {

		$categories = get_the_category();

		$cat_crumb = '';

		if ( 1 === count( $categories ) ) {
			// If in single category, show it, and any parent categories.
			$cat_crumb = $this->get_term_parents( $categories[0]->cat_ID, 'category', true ) . $this->args['sep'];
		}
		if ( count( $categories ) > 1 ) {
			if ( $this->args['heirarchial_categories'] ) {
				// Show parent categories - see if one is marked as primary and try to use that.
				$primary_category_id = get_post_meta( get_the_ID(), '_category_permalink', true ); // Support for sCategory Permalink plugin.
				if ( ! $primary_category_id && function_exists( 'yoast_get_primary_term_id' ) ) {
					// Support for Yoast SEO plugin, even if the Yoast Breadcrumb feature is not enabled.
					$primary_category_id = yoast_get_primary_term_id();
				}
				if ( $primary_category_id ) {
					$cat_crumb = $this->get_term_parents( $primary_category_id, 'category', true ) . $this->args['sep'];
				} else {
					$cat_crumb = $this->get_term_parents( $categories[0]->cat_ID, 'category', true ) . $this->args['sep'];
				}
			} else {
				$crumbs = array();
				// Don't show parent categories (unless the post happen to be explicitly in them).
				foreach ( $categories as $category ) {
					$crumbs[] = $this->get_breadcrumb_link(
						get_category_link( $category->term_id ),
						'',
						$category->name
					);
				}
				$cat_crumb = implode( $this->args['list_sep'], $crumbs ) . $this->args['sep'];
			}
		}
		$crumb = $cat_crumb . single_post_title( '', false );

		/**
		 * Filter the Genesis post breadcrumb.
		 *
		 * @since 2.5.0
		 *
		 * @param string $crumb HTML markup for the post breadcrumb.
		 * @param array  $args  Arguments used to generate the breadcrumbs. Documented in Genesis_Breadcrumbs::get_output().
		 */
		return apply_filters( 'genesis_post_crumb', $crumb, $this->args, $cat_crumb );

	}