Field ID Not Saving on Group

Dear all,

I'm having the following issue:
I created a Group called "Grade" and inside it a "Select" called "Belt".
After that I created a "custom_html" field, to display a message - using the "Logic Conditions".
As this is martial arts, if - for example - the BELT is "1st Degree Black Belt", based on the conditions, the "Ranking" to appear should be "Junior Instructor".
Problem is that when I save, the ID for the "Ranking" dissapears and I can't query it as Dynamic Content on the "Instructors" page.

I tried to paste an image here, but couldn't find how to do it.

Kindly help me to know how to save those ID's and query them.
I'm using Bricks.

Thanks