I just received my z atty pro 2.1 a couple days ago. Originally I couldn't get it to taste good but since the wick broke in the flavor has been very good. I watched the tutorial videos a bunch of times and when I'm messing with the hot coils after a few seconds a full on flame shoots up. I was noticing this doesn't happen in the video. This only happens when the caps off but I was wondering if I should worry about it or if its normal. Does this happen to anyone else?