Run request Create Intercompany AR Invoices, no Tax created on AR Invoice

We are in the process of moving from an upgraded 11i tax configuration (STCC) to a new R12 tax configuration (DAR), utilizing tax rules. I'm in the process of testing the Tax Rate that's applied on Intercompany transactions. I've run the request Create Intercompany AR Invoices and 4 invoices have been created, but none of them have any Tax Details. If I manually create an AR invoice that looks identical to an interfaced inter-company invoice, I do get Tax information populated. So why is nothing populated when the invoice is created by the concurrent request? What is happening during the