This annoys me too. I have just come back with the latest patch and I keep hitting my two mouse keys to go forward and it doesn't work. :/
Another movement issue; If I am running why do D and A strafe? It should be a left and right turn, Q and E are always the strafe keys in every other game. So you need two hands to run in this game with a keyboard and mouse, which is not logical.
If I put it on auto run, I can turn left and right normally. Just make the default like the auto run, it is more intuitive.