Unity2D movement stutter in very simple scene

Hi!

I have a very simple scene with one character and fixed camera; the sprites stutter on movement!

Here is the movement script:

 public class PlayerController : MonoBehaviour
 {
     public Vector2 MovementDirection;
     Vector2 facing;
     public float movSpeed;
     public Rigidbody2D rb;
     public Animator animator;
 
     // Start is called before the first frame update
     void Start()
     {
 
     }
 
     // Update is called once per frame
     void Update()
     {
         ProcessInputs();
     }
 
     void FixedUpdate()
     {
         Move();
         Animate();
     }
 
     void ProcessInputs()
     {
         if (MovementDirection.y == 0)
             MovementDirection.x = Input.GetAxisRaw("Horizontal");
 
 
         if (MovementDirection.x == 0)
             MovementDirection.y = Input.GetAxisRaw("Vertical");
 
         movSpeed = Mathf.Clamp(MovementDirection.magnitude, 0.0f, 1.0f);
         MovementDirection.Normalize();
     }
 
     void Move()
     {
         //rb.velocity = MovementDirection * movSpeed;
 
         rb.MovePosition(rb.position + MovementDirection * movSpeed * Time.deltaTime);
 
         if (MovementDirection.x != 0 || MovementDirection.y != 0)
         {
             facing = MovementDirection;
         }
     }
 
     void Animate()
     {
         animator.SetFloat("Horizontal", facing.x);
         animator.SetFloat("Vertical", facing.y);
         animator.SetFloat("Speed", movSpeed);
     }
 }

I have already tried the following:

• switching between "Update" and "Fixed Update"

• Playing with interpolate and the body type

• Deleting every tile on the scene

• Turning physics off (The character animate, doesn't move, and still stutter)

I really don't know what to do! Thank you!