Unity Issue Tracker - NullReferenceException is flooded when exiting Play Mode while Inspector is displaying a list whose contents are generated at runtime

Fixed

Fixed in 2021.3.32f1, 2022.3.13f1, 2023.1.19f1, 2023.2.0b16, 2023.3.0a12

Votes

17

Found in

2021.3.7f1

2022.3.11f1

2023.1.16f1

2023.2.0b6

2023.3.0a3

Issue ID

UUM-46364

Regression

Yes

NullReferenceException is flooded when exiting Play Mode while Inspector is displaying a list whose contents are generated at runtime

Aug 16, 2023

Reproduction steps:
1. Open the “ListExceptionStripped“ project
2. Open the “Sample” scene
3. Enter Play Mode
4. Select the “Controller“ GameObject
5. In Inspector expand “List 1” and/or “List 2”
6. Exit Play Mode and observe Console
7. If no errors, enter and exit Play Mode once more

Expected result: No errors
Actual result: “NullReferenceException: SerializedObject of SerializedProperty has been Disposed” is flooded

Reproduced in: 2022.3.6f1, 2022.3.7f1, 2023.2.0a23, 2023.2.0b6
Not reproduced in: 2021.3.29f1, 2022.3.5f1, 2023.1.9f1, 2023.2.0a22

Reproduced on: macOS 13.4.1 (Intel), Windows 10
Not reproduced on: No other environment tested

Notes:
1. Not reproduced when the GameObject is not selected or the lists are collapsed
2. The error stops flooding after the lists are stopped being displayed in Inspector
3. The error is flooded when 2 lists are displayed and at least one is expanded
4. The error is thrown only once when only 1 list is displayed and is expanded

Comments (15)

Sailor904

Sep 04, 2024 20:08

NullReferenceException: SerializedObject of SerializedProperty has been deleted. UnityEditor.SerializedProperty.get_objectReferenceInstanceIDValue () (a <4ec4ffcbf9cb40b9a62b20bd9f80de36>:0) UnityEditor.EditorGUIUtility.ObjectContent (UnityEngine.Object obj, System.Type type, UnityEditor.SerializedProperty property, UnityEditor.EditorGUI+ObjectField Validator validator) (a <4ec4ffcbf9cb40b9a62b20bd9f80de36>:0 ) UnityEditor.UIElements.ObjectField+ObjectFieldDisplay.Update () (a <4ec4ffcbf9cb40b9a62b20bd9f80de36>:0) UnityEditor.UIElements.ObjectField+ObjectFieldDisplay.ShowMixedValue (System.Boolean show) (at <4ec4ffcbf9cb40b9a62b20bd9f80de36>:0) .UpdateMixedValueContent () (a <4ec4ffcbf9cb40b9a62b20bd9f80de36>:0) UnityEditor.UIElements. ObjectField.UpdateDisplay () (a <4ec4ffcbf9cb40b9a62b20bd9f80de36>:0) UnityEngine.UIElements.VisualElement+SimpleScheduledItem.PerformTimerUpdate (UnityEngine.UIElements.TimerState state) (at <5566f9e97c3b47c3802abbb5405c3a92>:0) UIElements.TimerEventScheduler.UpdateScheduledEvents () (a <5566f9e97c3b47c3802abbb5405c3a92>:0) UnityEngine. UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers() (a <5566f9e97c3b47c3802abbb5405c3a92>:0)
UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at <5566f9e97c3b47c3802abbb5405c3a92>:0) UnityEditor.RetentionMode.UpdateSchedulers () (at <6b1405e82d454258a8fbde4cb0621937>:0) THE PROBLEM IS ALWAYS PRESENT, I AM USING UNITY 2023.2. 3F1 AND THIS BUG ALWAYS HAPPENS, EVEN DEACTIVATING ALL THE OBJECTS IN THE SCENE AND THE SCRIPTS THE BUG CONTINUES, ALL THIS IS ABSURD FIX THIS BUGS
KEENOY

Aug 23, 2024 12:02

I don't think it's specific for some versions. It happens every versions installed in my case.
kevindaluz

May 14, 2024 22:45

Unity, please fix t. Happening for me in 2022.3.15f1
SteamQuarterStudios

May 11, 2024 07:11

This is STILL not fixed in 2022.3.28f...
Akaimari

Apr 29, 2024 17:02

Not fixed, Still happening in 2022.3.11f1
cihadturhan_unity

Jan 16, 2024 18:34

THIS ISSUE HAS NOT BEEN FIXED.
2022.3.16f1 MacOS (Intel)
Epsilon_Delta

Dec 16, 2023 17:33

Still happening in 2022.3.15f1
RobertWebb

Dec 08, 2023 05:10

I still get this issue in 2022.3.14, so not fixed.
RedTShirtGaming

Nov 29, 2023 15:05

Still occurring in 2022.3.10f1
Wilhelm_LAS

Nov 22, 2023 21:31

I face this issue when updating an array in inspector while its showing in inspector. V2022.3.7f1