I opened a previous thread about forcing WooCommerce to show the Tax name in the checkout page of WooCommerce even if the rate is 0.000%, as I need that information to be displayed (VAT rates in my store are always 0% due to a VAT extemption regime, but it needs to be displayed). See the image below about how Taxes are currently managed:
I used this code in my function.php file to force WooCommerce to display the Tax name in Cart or during Checkout:
add_filter( 'woocommerce_cart_hide_zero_taxes', '__return_false' );
It works, and this is the result, the Tax name is displayed right before the Total row:
The problem comes when using the extension called Woocommerce Print Invoices & Packing lists, which is supposed to show the same stuff during the checkout, but the table row about Taxes is completely missing, check how the table appears in the Invoice:
Any ideas to force the displaying of the Tax name like the Checkout example above? Any help is appreciated.