Text string variables not working

I need to create text string variables for an interactive prototype and they are not working.

I have tried watching countless YouTube tutorials, following along, and using community-shared files to figure out why it isn’t working.

I have also gotten my UX designer partner to double-check my work. No matter what I try, the variable will not replace the text.

I have attached a screenshot of a working field/variable and my own. Can anyone please help with this or is it a bug??