[gameplay]can't use left click to move in game

I haven't played this game for a couple of weeks, everything was working fine untill then. However after downloading and playing on the latest patch I can only move and attack using right click. I've tried deleting my config file, restoring defaults and reinstalling the game. It's also not possible to simply select left click as a bind for movement in the keybindings menu. I have the same problem on all of my accounts, even those on other servers