ARC audio clip entry reference is lost when undoing edits made in play mode

Unity: Audio Random Container

Error

Open

6.0.X

Fixed

2023.3.X

Won't Fix

2023.2.X

Fixed an error in Audio Random Container editor widow when undoing removal of an list element that was done in play mode after going back to edit mode.

Cancelling this 2023.2 tech release issue since the support for this release has come to end of life. Cancelling this 2023.2 port case does not affect any LTS or Unity 6 Beta/Preview that remain open.

Removing a clip in play mode and subsequently undoing in edit mode throws an error. It messes up the window so that you cannot add or remove clips until you redraw the window.

Repro

Create an ARC asset (Assets > Create > Audio > Audio Random Container)
Open the ARC asset by double clicking on it
Add an audio clip entry to the audio clips list by clicking on the plus button
Enter play mode
Remove the audio clip entry by clicking on the minus button
Exit play mode
Undo

Expected: Audio clip entry works as usual

Actual: The audio clip entry is now lost, greyed out, and an error is logged (see screen recording attached)

Stack trace

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.AssetDatabase.TryGetGUIDAndLocalFileIdentifier (UnityEngine.Object obj, System.String& guid, System.Int64& localId) (at /Users/kristinnbragi/gitrepo/23.2/Modules/AssetDatabase/Editor/ScriptBindings/AssetDatabase.bindings.cs:778)
UnityEditor.AudioContainerWindow.OnAudioClipListChanged (UnityEditor.SerializedProperty property) (at /Users/kristinnbragi/gitrepo/23.2/Editor/Mono/Audio/AudioContainerWindow.cs:884)
UnityEditor.UIElements.Bindings.DefaultSerializedObjectBindingImplementation+<>c__DisplayClass7_0.<TrackPropertyValue>b__0 (System.Object e, UnityEditor.SerializedProperty p) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:1000)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext+TrackedValue.Update (UnityEditor.UIElements.Bindings.SerializedObjectBindingContext context, UnityEditor.SerializedProperty currentProp) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:611)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext+TrackedValues.Update (UnityEditor.UIElements.Bindings.SerializedObjectBindingContext context, UnityEditor.SerializedProperty currentProperty) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:719)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.UpdateTrackedProperties () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:835)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.OnSerializedObjectChanged () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:568)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.UpdateRevision () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:525)
UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.UpdateIfNecessary (UnityEngine.UIElements.VisualElement element) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:548)
UnityEditor.UIElements.Bindings.SerializedObjectBindingBase.Update (UnityEngine.UIElements.BindingContext& context) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:1316)
UnityEngine.UIElements.BindingUpdater.UpdateUI (UnityEngine.UIElements.BindingContext& context, UnityEngine.UIElements.CustomBinding customBinding) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElements/Core/Bindings/BindingUpdater.cs:191)
UnityEngine.UIElements.BindingUpdater.UpdateUI (UnityEngine.UIElements.BindingContext& context, UnityEngine.UIElements.Binding bindingObject) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElements/Core/Bindings/BindingUpdater.cs:123)
UnityEngine.UIElements.VisualTreeDataBindingsUpdater.Update () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElements/Core/Bindings/VisualTreeDataBindingUpdater.cs:209)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElements/Core/VisualTreeUpdater.cs:114)
UnityEngine.UIElements.Panel.UpdateDataBinding () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElements/Core/Panel.cs:1161)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElements/Core/UIElementsUtility.cs:275)
UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElements/Core/UIElementsUtility.cs:105)
UnityEditor.RetainedMode.UpdateSchedulers () (at /Users/kristinnbragi/gitrepo/23.2/Modules/UIElementsEditor/RetainedMode.cs:55)

ARC audio clip entry reference is lost when undoing edits made in play mode

Unity: Audio Random Container

Open

Fixed

Won't Fix

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

ARC audio clip entry reference is lost when undoing edits made in play mode

Unity: Audio Random Container

Statuses

Open

Fixed

Won't Fix

Resolution Notes

2023.3.XFixedFixed an error in Audio Random Container editor widow when undoing removal of an list element that was done in play mode after going back to edit mode.

2023.2.XWon't FixCancelling this 2023.2 tech release issue since the support for this release has come to end of life. Cancelling this 2023.2 port case does not affect any LTS or Unity 6 Beta/Preview that remain open.

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?