I know on the ORV forum that they had a Pigtail problem a while back...But, while they can dry-rot over time and prolonged exposure to the sun (just don't make them like they did years ago), I can't see the new one doing the same thing in a very short time. As others said, check the regulator, and for scientific research, make a soapy water solution and put it on the fittings, connections, and any other gas device that you may think is leaking to see what is really going on.
Good luck and hope that you get if worked out!