Offer letter template does not display all parameterized fields

Summary:

We have a problem. We need to create another offer letter template for our company. The new template is created from an existing letter.

We followed the step-by-step instructions in the video: https://www.youtube.com/watch?v=lzPKWNoGPSc

We created the offer letter template from the one we already use in production. We edited some texts and added new fields to the template. In the Word document, these new fields appear with information, but when we compress it in a zip file and import it into the recruitment content library and use the template in the job offer, the fields appear empty, or rather, they do not appear at all.