Root Motion and Y-Axis Rotation

I have a 2D Sprite with a Animator and animation clip that is supposed to rotate the sprite around the y-axis. With root motion on, the animation does not run at all. Rotating around the x- or z-axis does work with root motion on. With root motion off, the sprite rotates as expected. I would rather keep root motion on, as I have other movement clips that require it. I already have a script workaround that I can implement to rotate it instantly, with an idea of how to do it gradually. I'd rather control this with an animation clip, though using curves. Is there a fix for this? Thanks!