Showing Subform Field based on Subform Dropdown

Showing Subform Field based on Subform Dropdown

Hi, on my main form "Contact Info" I have some dropdowns that will show a single line field based on what is selected in the dropdown.

i.e. In the "Distribution Method" dropdown, I select "FedEx", and a "Tracking #" field appears.

I have tried to do this same thing within a subform, but the subform just displays all of the fields and won't use the rules/logic I've setup in the form ("Contact Info Subform").

Do subforms not use the logic that are specified in them?

Is there another way to have a subform hide specific fields and then show them based on a subform dropdown selection?