OnCollisionEnter and OnTriggerEnter not working

I am instantiating an prefab arrow and shooting it through a Trigger into the Terrain but neither OnTriggerEnter or OnCollisionEnter trigger at all. The arrow has a Rigidbody attached and is not Kinematic while Flying. I have no idea whats wrong at this point.

The Arrow has a this Script. It is active as soon as the arrow gets Instanciated and does not get deactivated.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EmbededBehavior : MonoBehaviour {

    Rigidbody rigidB;


	// Use this for initialization
	void Start () {
        rigidB = GetComponent<Rigidbody>();
        
	}
	
	// Update is called once per frame
	void Update () {
		
	}

    private void OnCollisionEnter(Collision col)
    {
        Embed();
        transform.parent = col.transform;
        Debug.Log("OnCollisionEnter");
    }

    private void OnTriggerEnter(Collider col)
    {
        Embed();
        transform.parent = col.transform;
        Debug.Log("OnTriggerEnter");
    }

    void Embed()
    {
        transform.GetComponent<ProjectileAddForce>().enabled = false;
        rigidB.velocity = Vector3.zero;
        rigidB.useGravity = false;
        rigidB.isKinematic = true;
        
    }


}

Was missing a collider on the Object that’s why it didnt trigger