Character drifts, moves the wrong way

No idea what I screwed up this time, though I suppose it has something to do with the camera. Long story short when I get to a specific point in my game the movement controls get all wacky. The vertical axis on the gamepad goes from moving the player forward or backward to moving them north or south, while left and right become east - west. Have tried resetting my camera rotation to 0 - 0 -0 with no success. Any help is humbly and greatly appreciated. Thanks, and God bless.