So, I've been playing Warframe lately, and I've noticed that occasionally, when I aim (hold LT) and then fire (hold RT) I strafe left.
I have done some testing, and I have found that it's less consistent if I stop moving before I aim, then fire. It also occasionally triggers if I move while I'm aiming and shooting.
I think it might be a dodgy input in the controller? But I'm not sure. What could be causing this?