So, I have been leaving My rifle Connected to My tank and added air as needed. After the bottle reached My desired PSI I just left it hooked up to the Tank. It's been hooked up for about 4 days. I shot the Tank down to about 2000 psi and said, time to top the tank off again. It has turned pretty chilly here and the Rifle, tank and all were very Cold. So I went to disconnect, I relieved the Pressure from the Fill whip and air started coming out of the Fill nipple on the Rifle. Just wondering if anyone else has had this problem? Could the one way Fitting just be too cold to close all the way? I brought it in so it can warm up and then I can try putting air back in and see if it holds. Just wondering if others have had a similar experience?