Stamps in Adobe Acrobat DC

Greetings,

I have created a fill in file called "reviewed" and can fill in the fields when needed. I am trying to use this "reviewed" as a stamp. I can open a PDF in Reader DC, select Tools, then Stamps, and add the "PDF" "reviewed" stamp to the list but when I select it an it appears in the document, I can't access the fill in fields anymore. It works on another machine but I cannot see how its working and can't get it to work on other computers.

This is for a client of mine and they are a construction company so they like to use the feature on documents within the office. Can you tell me what we are missing/doing incorrectly?

Steve