Curve modifier not working, Can only deform along z axis I am working with the curve modifier for the face of a character I'm making. I'd like to be able to curve the mouth to make facial expressions. But I can't get the sides of the mouth to come inwards, it just acts like the curve vertex has moved vertically. I can get the lips to move up and down, but not sideways.

this works (moving on z as expected):

this doesn't (moving on z, but should move on x):




Any help appreciated. Thx.

Update:
Lets suppose I wanted to be able to make a face like the one made below. This is what i mean by I want the sides of the mouth to come inwards. By making the sides of the mouth closer to one another, with the curve. (I did not use the curve in this example)
Not really sure what is worng with your curve specifically, but replacing it with a Bezier Curve instead of a NURBS Path seems to solve the issue.

Converting didn't seem to be enough