XML Node issue with flow dispatcherPO

I am running the flow dispatcherPO that has an xml node that converts the xml output from PO120 so that it can be transmitted to the vendor.  The xml node works fine on our test system, but in production I am getting the error - A DOCTYPE is not allowed in content.  I did some testing by creating a simple flow that parses the xml file and ran it on production and test and as expected it does not work in production, but does test.  In test we are on Landmark version 10.1.1.42 and in production we are on version 10.1.1.23.  It looks like this issue was corrected in one of the updates.  Does anyone know of a way to get around this error without rewriting the whole flow.  I don't want to upgrade production if I don't have to because we are in the middle of upgrading to Windows 2012 servers with a go live of June.  Thank you.