I just got a tfv12 today and after priming it and putting it on my SMOK Alien 220, I went to fire it and I seen a yellow flash/glow from the spot where you adjust the airflow and the little bit of vapor I got tasted horrible. This is my 2nd set-up using the same brand on my mod/tank combo, I am new to the vape scene and I want to know if I am the only one who has experienced this. Also when I look inside of the air flow I can see what looks like an exposed wire/part of the coil.