Load and Get Values of Custom Transaction Form Record – SuiteScript 2.0

I have a script that I am writing where I want to get the value of the template that is set as the print template on a custom transaction form.  I am able to load the custom transaction form record just fine with suitescript.

let formRec = record.load({type: 'custform', id: 175, isDynamic: true});

When I try to get the value of the Print Template field though it just returns back undefined.

The field id is ‘advformlayout’.

I have a Chrome Browser Extension called NetSuite Field Explorer that is able to get the value, so I’m sure there is a way to do it.

Any help would be greatly appreciated.