Tracking number with Kadence WooCommerce Email Designer

Hi
I use Kadence WooCommerce Email Designer for my woocommerce emails.

I have your plugin set up to add the tracking number to the order completed email.
Today was the first time I have had a customer reply to that order completed email asking for a tracking number.

On that email, there is not a tracking number. However, in woocommerce when I go to edit the order complete email and use this customer’s order as an example, it shows.

Any idea what is going on?

Thanks