Hi, When trying this I could never get it to work in my document, although it worked fine in yours. I believe I have narrowed the problem down to this:

Within my document, an invoice, I want everything to be capitalized regardless of whether the user has Caps Lock on, so within font properties, I had All Caps selected.

I found that turning off All Caps fixed the issue. I also found that on your example document, by selecting all and enabling All Caps, this also broke the information from appearing.

Any thoughts as to why having All Caps on would break the information from appearing in the 2nd field?