Reply To: NullReferenceException in GraphOwnerInspector.OnDestroy

[psykawParticipant]

The right fix is:

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void OnDestroy(){ if (owner == null && !ReferenceEquals(owner, null) && owner.graph != null){ if (owner.graphIsBound){ Undo.DestroyObjectImmediate(owner.graph); } } }

If owner equals to null (could have been destroyed but is not null) so you check if owner is really null with ReferenceEquals and if not continue.