I use an iphone4. I am experiencing this problem where my skills don't register. It happens all the time with all my skills, in PvP and in PvE. I mainly use a bird, and my ping is usually fine. Today, while farming vyxnar in Shadow Cave V, my evade skill wouldn't activate at all, as well as others, but this one was made most salient to me at the time since I was being ganged by 2 djinns and vyxnar himself (due to fail pulling lol).