Animations cause character controller to move strangely

When I attach animations to my game object with a character controller it starts moving very strangely, it seems dependant on the animation that's playing? For example while walking and playing the walking animation the player walks diagonal but if I walk while playing the jumping animation the player will hop a little bit and walk straight. Its like the animations are moving the character controller, I can post gifs if anyone needs more description. I have absolutely no clue and I feel like its something small I have missed, anyone got any ideas?

Here's my animation/movement code if it helps at all:

Code (JavaScript):

1. function Update () {
2.     vert = Input.GetAxis("Vertical");
3.     horiz = Input.GetAxis("Horizontal");
4.  
5.     if (vert != 0.0 || horiz != 0.0) {//moving
6.         anime.CrossFade("Walk");
7.     } else {
8.         anime.CrossFade("Idle");
9.     }
10.  
11.     velocity = transform.forward*vert*Time.deltaTime*20.0;
12.     velocity.y = -Time.deltaTime*42.0;
13.  
14.     if (cc.isGrounded) {
15.         if (jump == 0.0 && Input.GetAxis("Jump")) {
16.             //jump
17.         }
18.    
19.     }
20.  
21.     cc.Move(velocity);
22. }

EDIT: Never mind solved it, it was caused by a collider on the rig hitting the ground.