I had a similar issue last time i was out, and by the end of the day my LPR was leaking with an audible hiss out of the escape hole. I replaced the o-rings in it and it was totally fine, afterwards. If you have some lying around, that's worth a fix. there's only 2 small ones (though one is in the neck and kind of sucked even with an o-ring pick).
----Run and Gun----