In my experience I have found that pods with auto draw, are prone to this issue. On my Caliburn and NXT, I have a brief ritual I’ve added to my nightly routine. I take the pod off, blow through the device (not the pod), and then leave the pod off overnight.
Often when doing this on the NXT there will be a gurgling sound as moisture is being displaced from the air intake channels. IMHO this moisture is what effects the auto draw switch. Keeping it as dry as possible keeps the switch functional.
Doing so, I have never had this problem. The NXT is by far my favorite vape as it delivers the strong hit I like, has large juice capacity, easy to charge and fill, and coils last a long time.