It seems that in a recent build the Free Look Shift+WASD function was removed or altered. I downloaded a build that was most recent at the time less than a week ago which had this feature intact, but the most recent builds I've tested don't have this feature functioning. (I am unsure what the previous build was). Right-click+Mouse still works, as does Shift+R to reset. I've attempted a reinstall into a new directory with removal of the old 'Dolphin Emulator' folder to ensure that my settings weren't affecting it.
Build 4.0-6789
EDIT: I should note that I am working with GameCube emulation.
Build 4.0-6789
EDIT: I should note that I am working with GameCube emulation.