Forums › 💬 FlowCanvas › ⚙️ Support › ArgumentNullException: Value cannot be null.[3.1.8] › Reply To: ArgumentNullException: Value cannot be null.[3.1.8]
Hello again and sorry for the late reply!
To fix this, please open up BlackboardEditor.cs file and replace line #103 with this line of code:
options.blockReorder = contextObject != null ? PrefabUtility.IsPartOfRegularPrefab(contextObject) : false;
If you rather want me to send you the file to your registered email account please let me know.
Thank you.