Character rolls consistently in all directions, but right.

First of all thank you for reading this. I modified the Penelope controls to move the character and have him face either right or left with one joystick. I have the character moving at another speed with the press of a button which will be a roll animation. When I press the roll button it works fine, except when the character is facing right and moving right. When I try to roll to the right works probably 25 percent of the time. I have no idea where the problem lies and it's getting a pit frustrating. Thank you for all and any help in advance.

 using UnityEngine;
 using System.Collections;
 
 
 [RequireComponent(typeof(CharacterController))]
 public class BaseControlsCC22 : MonoBehaviour {
     
     
     
     public MPJoystick moveJoystick;
     public float speed =                     6.0f;
     public Transform cameraTransform;
     public float rollSpeed = 10.0f;
     
 
     public float gravity =                     10.0f;
     
     public GUITexture rollButton;
     
     
 
     private Transform myTransform; //our characters transform
     private CharacterController character; //getting our characters controller
     
     // Use this for initialization
     public virtual void Awake(){
         myTransform = transform;
         character = GetComponent<CharacterController>();
     }
     
     // Update is called once per frame
     void Update () {
         movement (); //how we move
         FaceMovementDirection ();//this is us facing a new direction
     }
     public virtual void movement(){
         
         Vector3 moveDirection = cameraTransform.TransformDirection(new Vector3( moveJoystick.position.x, 0.0f, moveJoystick.position.y ) );
         // We only want the camera-space horizontal direction
         moveDirection.y = 0.0f;
         moveDirection.Normalize(); // Adjust magnitude after ignoring vertical movement
         
         // Let's use the largest component of the joystick position for the speed.
         Vector2  absJoyPos = new Vector2( Mathf.Abs( moveJoystick.position.x ), Mathf.Abs( moveJoystick.position.y ) );
         moveDirection *= speed * ( ( absJoyPos.x > absJoyPos.y ) ? absJoyPos.x : absJoyPos.y );
         
         // how to roll
         foreach(Touch touch in Input.touches)
         {
             if ( character.isGrounded )
             {
                 if ( touch.phase == TouchPhase.Began && rollButton.HitTest(touch.position) )
                 {
                     // Apply the current movement to roll
                     moveDirection *= rollspeed * ( ( absJoyPos.x > absJoyPos.y ) ? absJoyPos.x : absJoyPos.y );
 
                     
                 }
             }
 
         }
         moveDirection.y -= gravity * Time.deltaTime;
         // Actually move the character
         character.Move( moveDirection * Time.deltaTime );
     }
     
     public virtual void FaceMovementDirection()
     {    
         Vector3 horizontalGravity = character.velocity;
         horizontalGravity.y = 0; // Ignore vertical movement
         horizontalGravity.z = 0; // ignore looking on z axis
         // If moving significantly in a new direction, point that character in that direction
         if ( horizontalGravity.magnitude > 0.1 )
             myTransform.forward = horizontalGravity.normalized;
     }
     
 }