Bug / Crash ObiRopeCursor.ChangeLength causes IndexOutOfRangeExceptions

Code:
using Obi;

using UnityEngine;



public class HarpoonLauncher : MonoBehaviour

{

    public ObiRopeCursor ropeCursor;

    public float HarpoonVelocity = 10f;

    public HarpoonTip HarpoonTip;

    public Transform HarpoonConnection;

    public Transform TipSpawnPosition;

    public ObiSolver ObiSolver;

    public ObiRope Rope;

    public float InitialRopeLength = 1f;

    public float MaxRopeLength = 5f;

    public ObiParticleAttachment TipAttachment, DroneAttachment;



    public ObiRopeBlueprint RopeBlueprint;

    bool isShooting = false;



    // Start is called before the first frame update

    void Start() {

        InitialRopeLength = Rope.restLength;



        HarpoonTip.OnHarpoonEnter += WhenHarpoonImpacts;

    }



    private void OnDestroy() {

        HarpoonTip.OnHarpoonEnter -= WhenHarpoonImpacts;

    }



    private void WhenHarpoonImpacts(HarpoonTip source, Collider impact) {

        isShooting = false;

        // Readjust length after impact

        ropeCursor.ChangeLength((TipSpawnPosition.position - HarpoonTip.transform.position).magnitude + .02f);

    }



    // Update is called once per frame

    void Update()

    {

        if (Input.GetKeyDown(KeyCode.Space)) {

            ObiSolver.gameObject.SetActive(true);

            HarpoonTip.gameObject.SetActive(true);

            ropeCursor.ChangeLength(InitialRopeLength);

            HarpoonTip.transform.position = TipSpawnPosition.position;

            Vector3 velo = TipSpawnPosition.forward * HarpoonVelocity;

            HarpoonTip.Fire(velo);

            //Rope.SetMass(.01f);

            isShooting = true;

        }

    }



    private void FixedUpdate() {

        if (isShooting) {

            Debug.Log($"{Rope.restLength}");

            if (Rope.restLength >= MaxRopeLength) {

                isShooting = false;

            }

            else {

                //Rope.SetMass(.01f);

                ropeCursor.ChangeLength(Rope.restLength + HarpoonTip.GetComponent<Rigidbody>().velocity.magnitude * Time.fixedDeltaTime);

                //CurrentRopeLength += HarpoonTip.velocity.magnitude;

            }

        }

    }

}