So I went out to my favorite vapor store in town, I bought 2 1.8 dual coils for my kanger tech 3 mini pro, I've used these coils in it successfully VARIOUS times and im having a weird problem I screwed in a new one, I can draw on it but only when its halfway unscrewed, It wont tighten down and if I move it from my e-cig at all (a standard ego model battery that I use to beat around on) it just blinks the same story when I screw it down, It simply wont hit. I dont know what the problem is i've encountered this in the past and never had any luck finding an answer any idea's? (it is doing this with both of my ecigs im wondering if its the coils)