I got an evod bcc the other day at my local b&m. I have two others that work fantastically, but when I filled this one up and started vaping, it gurgled a lot, dry hit, and then I got a big mouthful of juice. Then it just stopped working. Took it apart and cleaned it all out, tried again, worked fine... For a half hour. Then it stopped working again. Then it started working again. then it quit again, and so on. So I changed out the atty head... Same story. Working, not working, working again... What is going on with this thing?