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Fixed issue where the editor window for the AudioRandomContainer asset would throw an error after restoring an asset with unsaved changes from outside the editor.
Fixed issue where the editor window for the AudioRandomContainer asset would throw an error after restoring an asset with unsaved changes from outside the editor.
An error gets thrown in the console when restoring a dirty ARC asset that had been deleted externally.
Regression details
I could reproduce it on 2023.2.0b16 but not on 2023.2.0b10
Repro
Expected: No errors in the Console.
Actual: Null reference error in the Console.
Note
I did not test editing other values than volume. Neither did I test whether this can occur with version control.
Stack trace
NullReferenceException: Object reference not set to an instance of an object UnityEditor.AudioContainerWindow.OnVolumeChanged (UnityEngine.UIElements.ChangeEvent`1[T] evt) (at /Users/bokken/build/output/unity/unity/Editor/Mono/Audio/AudioContainerWindow.cs:473) UnityEngine.UIElements.EventCallbackFunctor`1[TEventType].Invoke (UnityEngine.UIElements.EventBase evt) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventCallback.cs:64) UnityEngine.UIElements.EventCallbackRegistry+DynamicCallbackList.Invoke (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.VisualElement target) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventCallbackRegistry.cs:228) UnityEngine.UIElements.EventDispatchUtilities.HandleEvent_BubbleUpCallbacks (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.VisualElement element) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventDispatchUtilities.cs:385) UnityEngine.UIElements.EventDispatchUtilities.HandleEventAcrossPropagationPath (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.VisualElement target, System.Boolean isCapturingTarget) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventDispatchUtilities.cs:183) UnityEngine.UIElements.EventDispatchUtilities.PropagateEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.VisualElement target, System.Boolean isCapturingTarget) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventDispatchUtilities.cs:61) UnityEngine.UIElements.EventDispatchUtilities.DefaultDispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventDispatchUtilities.cs:564) UnityEngine.UIElements.EventBase.Dispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Events/EventBase.cs:110) UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:336) UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.BaseVisualElementPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/EventDispatcher.cs:200) UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Panel.cs:567) UnityEngine.UIElements.VisualElement.SendEvent (UnityEngine.UIElements.EventBase e) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/VisualElement.cs:1566) UnityEngine.UIElements.BaseField`1[TValueType].set_value (TValueType value) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Controls/InputField/BaseField.cs:195) UnityEngine.UIElements.BaseSlider`1[TValueType].set_value (TValueType value) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Controls/BaseSlider.cs:217) UnityEngine.UIElements.BaseField`1[TValueType].SetValueWithoutValidation (TValueType newValue) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Controls/InputField/BaseField.cs:499) UnityEditor.UIElements.Bindings.SerializedObjectBinding`1[TValue].AssignValueToField (TValue lastValue) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:1919) UnityEditor.UIElements.Bindings.SerializedObjectBindingPropertyToBaseField`2[TProperty,TValue].SyncPropertyToField (UnityEngine.UIElements.INotifyValueChanged`1[T] c, UnityEditor.SerializedProperty p) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:1785) UnityEditor.UIElements.Bindings.SerializedObjectBindingToBaseField`2[TValue,TField].OnPropertyValueChanged (UnityEditor.SerializedProperty currentPropertyIterator) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:1691) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.DefaultOnPropertyChange (System.Object cookie, UnityEditor.SerializedProperty changedProp) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:764) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext+<>c.<RegisterBindingObject>b__48_0 (System.Object o, UnityEditor.SerializedProperty p) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:783) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext+TrackedValue.Update (UnityEditor.UIElements.Bindings.SerializedObjectBindingContext context, UnityEditor.SerializedProperty currentProp) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:611) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext+TrackedValues.Update (UnityEditor.UIElements.Bindings.SerializedObjectBindingContext context, UnityEditor.SerializedProperty currentProperty) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:719) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.UpdateTrackedProperties () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:835) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.OnSerializedObjectChanged () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:568) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.UpdateRevision () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:525) UnityEditor.UIElements.Bindings.SerializedObjectBindingContext.UpdateIfNecessary (UnityEngine.UIElements.VisualElement element) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:548) UnityEditor.UIElements.Bindings.SerializedObjectBindingBase.Update (UnityEngine.UIElements.BindingContext& context) (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/Bindings/BindingExtensions.cs:1305) UnityEngine.UIElements.BindingUpdater.UpdateUI (UnityEngine.UIElements.BindingContext& context, UnityEngine.UIElements.CustomBinding customBinding) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Bindings/BindingUpdater.cs:191) UnityEngine.UIElements.BindingUpdater.UpdateUI (UnityEngine.UIElements.BindingContext& context, UnityEngine.UIElements.Binding bindingObject) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Bindings/BindingUpdater.cs:123) UnityEngine.UIElements.VisualTreeDataBindingsUpdater.Update () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Bindings/VisualTreeDataBindingUpdater.cs:209) UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/VisualTreeUpdater.cs:114) UnityEngine.UIElements.Panel.UpdateDataBinding () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/Panel.cs:1161) UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/UIElementsUtility.cs:275) UnityEngine.UIElements.UIEventRegistration.UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/Modules/UIElements/Core/UIElementsUtility.cs:105) UnityEditor.RetainedMode.UpdateSchedulers () (at /Users/bokken/build/output/unity/unity/Modules/UIElementsEditor/RetainedMode.cs:55)
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