WPML Multilingual & Multicurrency for WooCommerce - Payment Gateway Strings Revert to "Needs Update" Status in String Translation

Overview of the issue

When translating a WooCommerce payment gateway settings (such as titles and descriptions) through WPML String Translation add-on, the strings revert to a “needs update” status after visiting the front-end, particularly during the checkout process.

Workaround

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

• Open …/wp-content/plugins/woocommerce-multilingual/inc/class-wcml-wc-gateways.php file.
• Look for line 78.
• Replace:

  			$this->register_gateway_settings_strings( $load_gateway->id, $load_gateway->settings );
  

• With:

  			if (is_admin()) {
  				$this->register_gateway_settings_strings( $load_gateway->id, $load_gateway->settings );
  			}