Been using my mvp for almost 2 months now with no issues at all and loving it. Using nothing but the vision vivi nova. Today I received the kanger evod and a 510 to ego adapter. I was all excited and set it all up and went to take my first hit and now it won't fire. The light around the button just stays lit green. even without the evod attached and just the adapter I hit the button and stays green. After giving up and putting my nova back on it still won't fire. Light still stays lit green. The only way I can get either task to work is to thread the tank on just enough to have the connections touch. But it's so lose it wobbles around. Any help or ideas?