I have had a lot of trouble making dual coils work well in TC. It seems like if everything is not perfectly symetical you get hot spots. That being said, yours seems to be burning pretty much where it should (or shouldn't) in the middle of the coil. I know nothing about the Cloupor, but is there a way to lock the resistance? I know that is a big thing with many mods. If you don't lock it in at room temp it can cause it to run too hot or cool, not accurate at all. (some mods do not have this feature) If that isn't the problem the only other real explanation would be that it is just not very accurate. If you lower the temp to 400 or so and lower your joules does it work ok?
I just went and watched pieces of 2 different videos about that mod, and I want one now! I think it would make a great home for my TFv4! Great features, the auto mode, dual 18650 and 80 watts in TC! It does have resistance lock, so let it cool to room temp, then put on the atty, push the up and down power buttons at the same time. This should fix your problem.