Flex/Jira SOAP Webservice issue resolved

I guess I just needed to put this aside for a day and come back with fresh eyes. Another look at the log files gave me what I needed. There was an exception in the log about a NumberFormatException indicating that the String NaN couldn't be parsed into a number. A breakpoint in the SOAPEncoder.as file indicated that the NaN was being passed as the value of the "votes" property. So explicitly setting that value to "0" fixed the problem.

I would never have expected that I needed to set that property when creating a new issue.

But... it is working now, so expect to see a simpler way to submit bugs and feature requests coming soon.