Payments Validations: Cannot get Document Level validation point to work with AP invoices

I set up a user defined validation on the payment method, Electronic, that says the document payee bank account number is required.  This works during the payment process, but I wanted this validation to work with Invoice validation as is described in Doc ID 1621545.1.  I also previously tested a pre-defined validation -- US NACHA Payee bank validation which did not work either.

This is a new implementation and I am currently testing.  I am at 12.1.3

I will attach screen shots.