I recently purchased a smok alien device, with a crown tank I've had for a while, I recently purchased the 0.15 (nickel) coils but for some odd reason the TC-NI setting will not work it cuts off and switches to watts. However wattage mode, and TC-SS mode work fine, the coils are rated for 400-600f, so I don't see the problem running it in SS if it doesn't exceed that temperature but does anyone know why the nickel setting will not work? Is it because the coils are not true nickel? Just trying to be safe here