Brief We have modified the 'block_products_related.php' file for release 3.4.7.
Description. CMS settings for Article Related Products and Category Related Products blocks were not applied if article's category was a child category or the article was located in child category itself.
Further, extract the above mentioned file into the 'blocks' folder of your shop replacing an existing one. Don't forget to make a backup copy of the current file in case something goes wrong.