World Direction determines your character’s moving direction.
I’m not sure how your character moves, but in a ThirdPersonCharacter project World Direction (0,0,-1) can not make a character move. World Direction (1,0,0) + Scale value 1 → character moving forward
I also suggest that you should use Print Text to figure out what each axis does. Here’s the result of my phone:
So I use Axis Value X for Forward/Backward, and Axis Value Y for Right/Left. Hope this will help.