Conflict when using the same slug name for page and post type in Wordpress -

i have problems permalink in wordpress.

i have created page "grid-services" have permalink : example.com/grid-services/

i registered , costum post type "markets", , after created market named "grid-services", permalink: example.com/markets/grid-services/

the problem when try access example.com/grid-services/ url, automaticly redirect me example.com/markets/grid-services/ page url

what have tried when register post type have tried change code in diferent combination, nothing seems work.

register_post_type( 'markets', array(   'labels' => $labels,   'public' => true,   'supports' => $supports,   'hierarchical' => true,   'rewrite' => array("slug" => "markets"),   'has_archive' => false, ) 

);

what can problem?

giving function, can --

function wp_cpt_unique_post_slug($slug, $post_id, $post_status, $post_type, $post_parent, $original_slug) {     if ( in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) )         return $slug;      global $wpdb, $wp_rewrite;      // store slug made original function     $wp_slug = $slug;      // reset slug original slug     $slug = $original_slug;      $feeds = $wp_rewrite->feeds;     if ( ! is_array( $feeds ) )         $feeds = array();      $hierarchical_post_types = get_post_types( array('hierarchical' => true) );     if ( 'attachment' == $post_type ) {         // attachment slugs must unique across types.         $check_sql = "select post_name $wpdb->posts post_name = %s , id != %d limit 1";         $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_id ) );          if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_attachment_slug', false, $slug ) ) {             $suffix = 2;             {                 $alt_post_name = substr ($slug, 0, (200 - ( strlen( $suffix ) + 1 )) ) . "-$suffix";                 $post_name_check = $wpdb->get_var( $wpdb->prepare($check_sql, $alt_post_name, $post_id ) );                 $suffix++;             } while ( $post_name_check );             $slug = $alt_post_name;         }     } elseif ( in_array( $post_type, $hierarchical_post_types ) ) {         if ( 'nav_menu_item' == $post_type )             return $slug;         // page slugs must unique within own trees. pages in separate         // namespace posts page slugs allowed overlap post slugs.         $check_sql = "select post_name $wpdb->posts post_name = %s , post_type = %s , id != %d , post_parent = %d limit 1";         $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_type, $post_id, $post_parent ) );          if ( $post_name_check || in_array( $slug, $feeds ) || preg_match( "@^($wp_rewrite->pagination_base)?\d+$@", $slug ) || apply_filters( 'wp_unique_post_slug_is_bad_hierarchical_slug', false, $slug, $post_type, $post_parent ) ) {             $suffix = 2;             {                 $alt_post_name = substr( $slug, 0, (200 - ( strlen( $suffix ) + 1 )) ) . "-$suffix";                 $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_id, $post_parent ) );                 $suffix++;             } while ( $post_name_check );             $slug = $alt_post_name;         }     } else {         // post slugs must unique across posts.         $check_sql = "select post_name $wpdb->posts post_name = %s , post_type = %s , id != %d limit 1";         $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_type, $post_id ) );          if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_flat_slug', false, $slug, $post_type ) ) {             $suffix = 2;             {                 $alt_post_name = substr( $slug, 0, (200 - ( strlen( $suffix ) + 1 )) ) . "-$suffix";                 $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_id ) );                 $suffix++;             } while ( $post_name_check );             $slug = $alt_post_name;         }     }      return $slug; } add_filter('wp_unique_post_slug', 'wp_cpt_unique_post_slug', 10, 6);