Off. The camera is moving and keyframed. Mostly traveling in Z such that the various 3D points of the spline move from in front of camera to behind us (over the left shoulder). Think of it like a ribbon in 3D space. But for some reason, even though the first point has disappeared over my left shoulder low in frame, as it gets further and further behind camera, the 2D point suddenly is being evaluated as in the upper right corner instead of the lower left. Like maybe it “wrapped around” or something. It isn’t actually traveling to the right, it just gets so far left that somehow the math is incorrectly making it positive again in X. Or something.