I just returned from a trip where I used my Snow Peak stove for the first time. I found that once the stove was turned off the canister got really cold. This would indicate some kind of high pressure leak. Five minutes after turning the stove off there would be condensation on the canister and I would guess that the temp of the cannister was near freezing. The instructions on the cannister says to remove when not in use but this seems extreme. Is this normal or do I have a defect or operator error? I could not hear or smell anything. I tried tightening or loosening the canister more but it always was cold.