character controller move, strange behaviour

Hi. I have an enemy i want to move to the player. But in some cases the enemy doesnt move, see here:

The guy in the middle is the enemy. If the player is in the green areas the enemy is moving, if the player is in the read areas, he isnt.

Here is the part of the script:

 function Update () {
 
     moveDirection = player.transform.position - transform.position;
     moveDirection.Normalize();
         
     distanceToPlayer = (player.transform.position - transform.position).magnitude;
 
     if(distanceToPlayer <= 10 || stumbling){
         
         if(stumbling){ finalMoveDirection = -moveDirection * 2; }
         else{ finalMoveDirection = moveDirection; }
 
         Control.Move(finalMoveDirection * Time.deltaTime);
     }
 }

Any ideas ? D:

/edit: Just to make sure you get what i mean: I WANT the enemy to move no matter where the player is, but he isnt atm while the player is in the red areas, and i want that to get fixed.