Bug PropertyDrawer - Exiting PlayMode - ArgumentNullException: Value cannot be null

Unity 2022.2.0b16 URP

PropertyDrawer

Code (CSharp):

1.  
2.  
3. private SerializedProperty getObjectProperty;
4. private EnumField getObject = new();
5.  
6.        public override VisualElement CreatePropertyGUI(SerializedProperty property)
7.         {
8. getObjectProperty = property.FindPropertyRelative("getObject");
9. getObject.BindProperty(getObjectProperty);
10. container.Add(getObject);
11.             return container;
12.         }

Works fine in the Editor but when having the inspector open and leaving play-mode, I get this:



I tried to solve it with null-checks but the problem is that the serializedObject is recognized when checked directy, in the next line the error appears again.

Code (CSharp):

1.             if (property.serializedObject == null) return;
2.             if (property.serializedObject.targetObject == null) return;

Anything I can do?

 

Could you post the whole stack trace of the error?

 

For some reason the error message just disappeared.
It has been there for days including multiple restarts and code-changes.

Thanks for your reply, will post again in case it comes back.