How do I add a sprinting animation and accelerate my character when springting?

So I am using the 3D city template and doing a little testing upon my ideas before I start with my own game. I was able to get animations to work for a few other things but I am stuck on a sprint animation. I assume it's because of the way I have the idle and run animations set up. When I hold shift to sprint the animation locks up into a frozen sprite and I can still move but no animation happens until I let go of the shift key.

I can provide any other info necessary!! I appreciate any help!

If your animation is all correct, you might see if it's continually calling the animation when the button is pressed.

(ie, a trigger once might be all you need.)