Two objects with the same script interfering with each other

I have this object that when I collide with it, it plays an animation and sets the player as its parent, pretty basic stuff. But for some reason, when I have two of the same object active at the same time in the scene, this happens: https://hamassfall.tumblr.com/post/621398774625058816

This is the code:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class PlankBehaviour : MonoBehaviour
6. {
7.     private Animator anim;
8.  
9.     private void Awake()
10.     {
11.         anim = GetComponent<Animator>();
12.     }
13.  
14.     private void OnCollisionEnter2D(Collision2D other)
15.     {
16.         if (other.gameObject.CompareTag("Player"))
17.         {
18.             anim.SetTrigger("isStomped");
19.             other.transform.SetParent(transform, true);
20.          
21.         }
22.     }
23.  
24.     private void OnCollisionExit2D(Collision2D other)
25.     {
26.         if (other.gameObject.CompareTag("Player"))
27.         {
28.             anim.SetTrigger("isStomped");
29.             other.transform.SetParent(null);
30.         }
31.     }
32. }
33.  

Does anyone know what's happening?

 

It looks like the only possible problem would be with you setting the parent. I would debug.log the parent name of your character.