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Fixed in 2020.2.X

Fixed in 2020.1.X



Found in


Issue ID




[Editor] NullReferenceException thrown on changing the "Asset Serialization Mode" from Editor Settings



On changing the "Asset Serialization Mode" from Editor Settings under Project Settings when preset of "Editor Settings" is created and focused in the Inspector then it causes Editor to throw NullReferenceException, Refer attached video.

Steps to repro:
1. Create a new project
2. Edit > Project Settings > Editor
3. Create preset of Editor Settings
4. Project window > EditorSetttings preset > Select
5. Project Settings > Editor > Asset Serialization > Change Mode
6. The open scene(s) have been modified externally > Reload

Actual Result:
NullReferenceException is thrown on changing "Asset Serialization Mode" and Reloading the scene from pop up when Editor Settings preset is focused in the Inspector

Expected Result:
Asset Serialization Mode get selected and the scene is reloaded gracefully

Occurring on:

Working fine:
2020.2.0a19, 2020.1.1f1

Windows10 and macOS 10.14

Stack Trace:
NullReferenceException: Object reference not set to an instance of an object
UnityEditor.UIElements.EditorElement.Reinit (System.Int32 editorIndex) (at <4a010c27075a4c2daedf3ee971af3236>:0)
UnityEditor.PropertyEditor.ProcessEditorElementsToRebuild (UnityEditor.Editor[] editors) (at <70c42c992fa442f8aa9edcf3e9f7b431>:0)
UnityEditor.PropertyEditor.DrawEditors (UnityEditor.Editor[] editors) (at <70c42c992fa442f8aa9edcf3e9f7b431>:0)
UnityEditor.PropertyEditor.RebuildContentsContainers () (at <70c42c992fa442f8aa9edcf3e9f7b431>:0)
UnityEditor.InspectorWindow.RedrawFromNative () (at <70c42c992fa442f8aa9edcf3e9f7b431>:0)
UnityEditor.GenericMenu:CatchMenu(Object, String[], Int32)

  1. Resolution Note (fix version 2020.1):

    Fixed in: 2020.1.4f1.4412

Comments (4)

  1. pekdemir

    May 31, 2021 09:51

    Resetting the Layout to Default has also worked for me. Here's a small Hint though:
    If you don't want to lose your custom Layout, save it using "Window => Layouts => Save Layout to File" before you do the Layout Reset. At least in my Case I could re-import the saved Layout afterwards and the annoying Exception Error was gone. Good Luck! :-)

  2. gillemp

    May 09, 2021 10:55

    It was present in 2020.3.2f1 - Resting the layout solved it

  3. FeistyRodent

    Apr 26, 2021 22:39

    Was also seeing this in 2020.3.2.

    Reset my editor layout to Default and it seems to have resolved it

  4. earthcrosser

    Apr 16, 2021 18:47

    I have Unity version 2020.3.2f1 Personal, I think this bug could be back.

    NullReferenceException: Object reference not set to an instance of an object
    UnityEditor.PropertyEditor.DrawEditors (UnityEditor.Editor[] editors) (at <d6a6a4b561b9431dbfe2c61f7bf0d405>:0)
    UnityEditor.PropertyEditor.RebuildContentsContainers () (at <d6a6a4b561b9431dbfe2c61f7bf0d405>:0)
    UnityEditor.InspectorWindow.RedrawFromNative () (at <d6a6a4b561b9431dbfe2c61f7bf0d405>:0)

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