I have been vaping on the iJoy Avenger for a couple of weeks now. Recently I noticed that the wattage will increase or decrease between 10 and 50 watts randomly, mostly while the mod is sitting after I have been vaping on it. I have an Eleaf Ello Duro tank on it and actually chose the Rainbow Mirror-1 color because it matches the tank so well. It's gorgeous and I love the look, but I am afraid I am going to seriously hurt myself if I'm not paying attention and this auto-shift thing happens. I have never come across this before but I am assuming it's a glitch in the chip. At first I thought I was changing the wattage because it can very easily be done due to the weird placement of the buttons and the fact that you can't lock in the wattage settings (actually a pet peeve of mine) but it's definitely happening when I am not even holding the mod. I have watched the screen change a couple of times as well. Creepy. Anyone else having this issue? I contacted Cigabuy and tried to explain what's going on but all they want to do is refund me $15 of the mod's purchase price. Definitely not helpful. :\ I can also mail it back and they will send me a new one but this is scary and I don't want to risk it happening with another mod. Suggestions?