Duplicating Translated Products in WooCommerce Leads to Using the Native Editor

Overview of the issue

When you duplicate a translated product using WooCommerce functionality, when you try to translate this new product, instead of opening the Advanced Translation Editor (ATE) or Classic Translation Editor (CTE), WPML will use the native WordPress editor.

Workaround

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

• Open …/wp-content/plugins/woocommerce-multilingual/inc/translation-editor/class-wcml-wc-admin-duplicate-product.php file.
• Look for line 29.
• Comment out this line:

  		//add_action( 'woocommerce_product_duplicate', [ $this, 'woocommerce_duplicate_product' ], 10, 2 );