correct tag.php

inc/special.php

@@ -2,6 +2,10 @@
 
 add_filter('category_template', function($template) {
 
+    if ( !is_category() ){
+        return $template;
+    }
+    
     $current_category = get_queried_object();
 
     if (  $current_category->slug == 'rfo' ) {

rfo/category-end.php

@@ -15,7 +15,7 @@ $title = isset($args['title']) ? $args['title'] : 'РФО';
 $style = isset($args['style']) ? $args['style'] : 0;
 $posts_count = isset($args['posts_count']) ? $args['posts_count'] : 1;
 ?>
-
+<pre><?=$category?></pre>
 <div class="custom-category-block" data-category="<?php echo esc_attr($category); ?>">
     <?php
     $query_args = array(

tag.php

@@ -1,8 +1,8 @@
 <?php get_header(); ?>
 <div class="content-middle articles-wrapper">
-    <?php get_template_part('partials/rubrics-mobile'); ?>
+    <?php //get_template_part('partials/rubrics-mobile'); ?>
     <div class="section-title desktop">
-        <?php if (is_category()) : ?>
+        <?php if (is_tag()) : ?>
             <h1 class="section-title__title"><?= get_queried_object()->name ?></h1>
         <?php endif; ?>
     </div>
@@ -13,7 +13,7 @@
             'post_type' => 'post',
             'posts_per_page' => 13,
             'paged' => $paged,
-            'category__in' => get_queried_object_id()
+            'tag_id' => get_queried_object_id()  // Изменили category__in на tag_id
         );
         $query = new WP_Query($args);
         ?>