I have a Taranis Q X7 that I use to fly my race quads and tiny whoop. I noticed the problem when flying my tiny whoop, after flying forward for a while, it would start to go to the left or right. So I've narrowed it down the the transmitter. When ever I move the pitch forward or backward, the roll also changes when I am not telling it to. Is this an easy fix or should I email banggood (where I bought it from) and ask for a new one?