In Batch Job Costing, duplicate invoices to print are shown

When an invoice is created by the Config Creator (Order Entry>Utilities>Set Up>Config Creator), it is store-specific. 

In Batch Job Costing, a single store can be tagged or multiple stores can be tagged.

In the Invoices to Print drop down list, only the invoices for the tagged stores is shown.

If all stores are tagged and one of the Config Creator invoices is set to apply to all store, then they will all be in the list.  Any of the duplicates can chosen.