I got a pair of HyperX Cloud II's quite recently and after working well for a couple of months they have started only playing from the right headphone. This is apparent on all devices I tested, Xbox One, PC and phone. But both speakers do play sometimes when I bend the end of the cable with the 3.5mm jack on it. I guess I have been quite rough with them, dropping my contoller with the headphones on my head and the cable plugged in. Has anyone else ran into this problem? How can I fix it?