Break object by destroying and initiating, but multiple objects spawned! Please Help!

Unity Engine
1

I want object to break into many pieces once it drops onto the ground.
Yes, the following code worked but instead of instantiating ONE broken model, MULTIPLE models were instantiated.
I wondered what caused the problem. Sometimes it worked, spawning only 1 model, but sometimes 2 or even 3 models are spawned.

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

public class ObjectBreak : MonoBehaviour
{
    public GameObject destroyedVersion;
    public float breakVelocity;

    void OnCollisionEnter(Collision colliion)
    {
        if (colliion.relativeVelocity.magnitude > breakVelocity)
        {
            Destroy(gameObject);
            Instantiate(destroyedVersion, transform.position, transform.rotation);
        }
    }
}
2

my gues would be that your “destroyedVersion” object is also colliding with your “ObjectBreak” and with that , more collisions are created and more destroyedVersions getting instantiated

3

Could be colliding with multiple objects, or maybe your object has multiple colliders that are all colliding. Simplest fix here is just set and check a bool flag to mark when you’ve already broken once to avoid doing it again.

4

Update:
Solved the issue by setting and checking a bool to mark the object is broken or not.

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