Printing multiple copies to Device Hub using an Override

On the Shipments Screen, I overrode the Print Shipment Confirmation button so that I can direct the print job to a specific printer on the Device Hub.  

It works.  But I want to specify a number of copies.  There is a printer parameter NumberOfCopies but when the print job is sent to the Hub, it seems to be ignoring the parameter.

//THIS WORKS but only prints one copy even if NumberOfCopies is greater than 1
//PrintSettings printSettings = new PrintSettings()
//{
//    PrinterID = printer.PrinterID,
//    NumberOfCopies = iCSPrintHubActions.NumberCopies,
//    PrintWithDeviceHub = true,
//    DefinePrinterManually = true
//};

//PXGraph.CreateInstance<SMPrintJobMaint>().CreatePrintJob(printSettings, reportID, parametersDictionary, "Shipment Confirmation", CancellationToken.None);

//to use this you must uncheck Use Parallel Processing in the Device Hub
for (int i = 0; i < iCSPrintHubActions.NumberCopies; i++)
{
    PrintSettings printSettings = new PrintSettings()
    {
        PrinterID = printer.PrinterID,
        NumberOfCopies = 1,
        PrintWithDeviceHub = true,
        DefinePrinterManually = true
    };

    PXGraph.CreateInstance<SMPrintJobMaint>().CreatePrintJob(printSettings, reportID, parametersDictionary, "Shipment Confirmation", CancellationToken.None);
}

If I use the code that is commented out, it works great but if I specify a value greater than 1 for the NumberOfCopies, it has no effect.

I came up with a workaround.  I use a for loop and run the print job the number of times that is specified in the iCSPrintHubActions.NumberCopies.

I’ve been testing using 2 copies.

However, I have to uncheck the Use Parallel Processing in the Device Hub or I get errors and unexpected results.  Sometimes one prints, or they all fail.

If I knew why the NumberOfCopies parameter is being ignored, I would like to use my first option (commented out).  The work around is not the best way to do this.

Any suggestions?