Unity Editor crash when exit playmode

I noticed a strange crash bug while developing my project. I have several identical objects in the hierarchy.
Each object has a simple script. Here it is:

Spoiler: Code

Code (CSharp):

1. using UnityEngine;
2.  
3. public class SimpleObject : MonoBehaviour
4. {
5.     public float property;
6.  
7.     private void OnValidate()
8.     {
9.         foreach (var obj in FindObjectsOfType<SimpleObject>())
10.         {
11.             // null check doesn't helps
12.             if (!obj || !gameObject)
13.             {
14.                 Debug.Log("NUll");
15.                 return;
16.             }
17.            
18.             // without this if everything works fine
19.             if (transform.position.z > obj.transform.position.z)
20.             {
21.                 // do something
22.             }
23.         }
24.     }
25. }
26.  

Also, I have an object, that reload scene by click.

Spoiler: Code

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.SceneManagement;
3.  
4. public class ReloadSceneOnClick : MonoBehaviour
5. {
6.     private void Update()
7.     {
8.         if (Input.GetKeyDown(KeyCode.Mouse0))
9.         {
10.             Debug.Log("Reload Scene");
11.             SceneManager.LoadScene(0);
12.         }
13.     }
14. }

When I enter playmode, click to reload the scene and try to exit playmode, unity crashes. This happens with both Unity 2019.4.4 and Unity 2019.3.13. I have already reported a bug. Do you have any ideas why it happens?

 

Thanks Unity for the quick response! Actually, they know about this problem: https://issuetracker.unity3d.com/is...ion-when-exiting-play-mode-after-scene-reload I hope it will be fixed soon.