Curves control - move a point without tilting entire mesh?

I don’t know whether this is default/intended behavior or if I messed with a setting I shouldn’t have but using a nurbs path curve, when a move a point with g (or the tweak tool) the whole mesh tilts in the direction I move the point. I’m trying to follow this tutorial.

image
image
I don’t remember this being an issue earlier but I’m new to modeling with curves.

It flips upside down if I move in the wrong direction, so I think I’m doing something wrong.
image

Yep, by moving the point, you’re altering the orientation of the flow of the curve. you can always adjust the tilt of control points individually if you want a specific shape.