I'm honestly not sure if this is a bug or if I just misread something. My understanding is that Wind attacks should be doing double dmg to dragons with Wind as the defending element and normal dmg to everything else. With the Runner's island, I helped myself to some fairly useful dragons that I started using in the Arenas, HotCold dragon included. It took a while till I met any dragons with Wind as the defending element, by that time, I had already upgraded all attacks, my dragon hit like a truck, the enemy was a simple Wind dragon, so I thought to myself, yeah, easy one shot. Used Hurricane Ascent? Normal damage. The Wind dragon hits back and the damage is also normal. So, what gives?
Edit: language per forum rules

@tomáš-studýnka Wind against wind should give damage x2.

Right, that is what I thought, but that's not what I have experienced. Both the HotCold dragon and the Celestial Wind dragon do regular dmg to dragons with Wind as defending and also receive regular dmg from Wind attacks. I have not tried this with the Wind dragon itself, but the result is most likely the same. I want to know what is happening here, whether it can be fixed on my end and how.

@tomáš-studýnka You should write to support.