Hey guys and gals, wondering if you have ever had a problem with your Jet Boil not shutting off in the cold. I was out ice fishing, temp was 18 degrees F. thought I would cook up a Mountain House, and when I shut off the valve the flame would not go out, it was still on full bore. I have had propane bottles not want to seal when it is cold, but I would think the valve on the Jet Boil would have at least closed to shut off the flame. I had to blow out the flame and when I took of the canister I couldn't hear any leaking out. Any one have similar problems in the cold?