WooCommerce - Duplicate Category Display in Analytics Categories

Overview of the issue

When accessing WooCommerce > Analytics > Categories, the same category is displayed multiple times depending on the number of site languages and orders.

Workaround

Please, make sure of having a full backup of your site before proceeding.

• Open …/wp-content/plugins/woocommerce-multilingual/classes/Reports/Categories/Query.php file.
• Look for line 40.
• Change:

  } )->toArray();
  

• For:

  } )->unique('category_id', true)->toArray();
  

Note: keep in mind that this workaround will eliminate duplicated categories in the Analytics page. However, the order count may not align with the total number of items ordered.