Changing ReportStyle Fonts

When I change the ReportStyleFont like so:

var reportStyle = new ReportStyle("Times New Roman", "Times New Roman");

And then attempt to generate the PDF report:

using (var w = new PdfReportWriter(path))
{w.WriteReport(r, reportStyle);}

I end up getting this error:

"Additional information: The CLR has been unable to transition from COM context 0xdd025ba8 to COM context 0xdd025cd0 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations."

It would seem that this operation runs for too long. If I leave the fonts as default, it works fine. Is there a way for me to get around this?