APR Advanced Print Route & Mexico SAT Invoice

Has anyone attempted to use the APR for the Mexico CFDI Invoice?
In first step of my testing I used the same logic that works with our US Invoices – Break on InvcHead by CustNum.
The RED invoice did not work correctly. It looks like it created 14 invoice PDFs (matching the number of customers in the invoice group), but the invoices were identical in that they were a listing of every item sold that day for the entire group.
I am guessing the break did not work properly.