ObjectDisposedException for IServiceProvider in different Places

[mblamauer]

Description

Since updating our App to .NET 10 we have several occurences of this type of exception (originating from different Handlers/Places):

android.runtime.JavaProxyThrowable: [System.ObjectDisposedException]: Cannot access a disposed object. Object name: 'IServiceProvider'. at Microsoft.Extensions.DependencyInjection.ServiceLookup.ThrowHelper.ThrowObjectDisposedException + 0x0(Unknown Source) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService + 0x8(Unknown Source) at Microsoft.Maui.MauiContext+WrappedServiceProvider.GetService(/_/src/Core/src/MauiContext.cs:87) at Microsoft.Maui.MauiContext+WrappedServiceProvider.GetService(/_/src/Core/src/MauiContext.cs:87) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService + 0xb(Unknown Source) at Microsoft.Maui.ElementHandlerExtensions.GetService(/_/src/Core/src/Handlers/ElementHandlerExtensions.cs:49) at Microsoft.Maui.Controls.InputView.MapIsFocused(/_/src/Controls/src/Core/InputView/InputView.Platform.cs:12) at Microsoft.Maui.PropertyMapperExtensions+<>c__DisplayClass3_0'2[[Microsoft.Maui.IEntry, Microsoft.Maui, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Handlers.IEntryHandler, Microsoft.Maui, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null]].<AppendToMapping>b__0(/_/src/Core/src/PropertyMapperExtensions.cs:84) at Microsoft.Maui.PropertyMapperExtensions+<>c__DisplayClass0_0'2[[Microsoft.Maui.IEntry, Microsoft.Maui, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Handlers.IEntryHandler, Microsoft.Maui, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null]].<ModifyMapping>g__newMethod|0(/_/src/Core/src/PropertyMapperExtensions.cs:23) at Microsoft.Maui.PropertyMapper'2+<>c__DisplayClass5_0[[Microsoft.Maui.IEntry, Microsoft.Maui, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Handlers.IEntryHandler, Microsoft.Maui, Version=10.0.0.0, Culture=neutral, PublicKeyToken=null]].<Add>b__0(/_/src/Core/src/PropertyMapper.cs:239) at Microsoft.Maui.PropertyMapper.TryUpdatePropertyCore(/_/src/Core/src/PropertyMapper.cs:63) at Microsoft.Maui.PropertyMapper.UpdateProperty(/_/src/Core/src/PropertyMapper.cs:114) at Microsoft.Maui.Handlers.ElementHandler.UpdateValue(/_/src/Core/src/Handlers/Element/ElementHandler.cs:106) at Microsoft.Maui.Controls.Element.UpdateHandlerValue(/_/src/Controls/src/Core/Element/Element.cs:722) at Microsoft.Maui.Controls.VisualElement.UpdateHandlerValue(/_/src/Controls/src/Core/VisualElement/VisualElement.cs:2108) at Microsoft.Maui.Controls.Element.OnBindablePropertySet(/_/src/Controls/src/Core/Element/Element.cs:680) at Microsoft.Maui.Controls.BindableObject.SetValueActual(/_/src/Controls/src/Core/BindableObject.cs:682) at Microsoft.Maui.Controls.BindableObject.SetValueCore(/_/src/Controls/src/Core/BindableObject.cs:610) at Microsoft.Maui.Controls.BindableObject.SetValue(/_/src/Controls/src/Core/BindableObject.cs:552) at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IView.set_IsFocused(/_/src/Controls/src/Core/VisualElement/VisualElement.cs:2067) at Microsoft.Maui.Handlers.ViewHandler.OnPlatformViewFocusChange(/_/src/Core/src/Handlers/View/ViewHandler.Android.cs:255) at Unknown.Unknown(Unknown Source) at Android.Views.View+IOnFocusChangeListenerImplementor.OnFocusChange + 0xa(Unknown Source) at Android.Views.View+IOnFocusChangeListenerInvoker.n_OnFocusChange_Landroid_view_View_Z + 0xe(Unknown Source) at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw + 0x11(Unknown Source) at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualVoidMethod + 0x86(Unknown Source) at Java.Interop.JniPeerMembers+JniInstanceMethods.InvokeVirtualVoidMethod + 0x65(Unknown Source) at Android.App.Activity.OnDestroy + 0x0(Unknown Source) at Microsoft.Maui.MauiAppCompatActivity.OnDestroy(/_/src/Core/src/Platform/Android/MauiAppCompatActivity.cs:59) at Android.App.Activity.n_OnDestroy + 0xe(Unknown Source) at crc6488302ad6e9e4df1a.MauiAppCompatActivity.n_onDestroy(Native Method) at crc6488302ad6e9e4df1a.MauiAppCompatActivity.onDestroy(MauiAppCompatActivity.java:59) at android.app.Activity.performDestroy(Activity.java:9628) at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1576) at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:6523) at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:6568) at android.app.servertransaction.DestroyActivityItem.execute(DestroyActivityItem.java:52) at android.app.servertransaction.ActivityTransactionItem.execute(ActivityTransactionItem.java:63) at android.app.servertransaction.TransactionExecutor.executeLifecycleItem(TransactionExecutor.java:169) at android.app.servertransaction.TransactionExecutor.executeTransactionItems(TransactionExecutor.java:101) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:80) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2961) at android.os.Handler.dispatchMessage(Handler.java:132) at android.os.Looper.dispatchMessage(Looper.java:333) at android.os.Looper.loopOnce(Looper.java:263) at android.os.Looper.loop(Looper.java:367) at android.app.ActivityThread.main(ActivityThread.java:9287) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:566) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:929)

This exception happened for example when closing the app on the Android Emulator (Android 16) through the phones task manager while an entry is focused and the keyboard is up.

We also see some of these exceptions in the Google Play Console for our Production App. Seems this is mostly but not exclusivly happening on Android 16.
Another origin of this exception appears to be the Flyoutpage:

Exception android.runtime.JavaProxyThrowable: [System.ObjectDisposedException]: ObjectDisposed_Generic ObjectDisposed_ObjectName_Name, IServiceProvider at Microsoft.Extensions.DependencyInjection.ServiceLookup.ThrowHelper.ThrowObjectDisposedException + 0x0 (Unknown Source) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService + 0x8 (Unknown Source) at Microsoft.Maui.MauiContext+WrappedServiceProvider.GetService + 0x2c (Unknown Source) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService + 0xb (Unknown Source) at Microsoft.Maui.Platform.MauiContextExtensions.GetFragmentManager + 0x6 (Unknown Source) at Microsoft.Maui.Handlers.FlyoutViewHandler.UpdateDetailsFragmentView + 0x9c (Unknown Source) at Microsoft.Maui.Handlers.FlyoutViewHandler.LayoutAsFlyout + 0x76 (Unknown Source) at Microsoft.Maui.Handlers.FlyoutViewHandler.LayoutViews + 0x1e (Unknown Source) at Microsoft.Maui.Handlers.FlyoutViewHandler.UpdateFlyoutBehavior + 0x39 (Unknown Source) at Microsoft.Maui.Handlers.FlyoutViewHandler.MapFlyoutBehavior + 0xa (Unknown Source)

and a Label:

ObjectDisposed_ObjectName_Name, IServiceProvider at Microsoft.Extensions.DependencyInjection.ServiceLookup.ThrowHelper.ThrowObjectDisposedException + 0x0 (Unknown Source) at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService + 0x8 (Unknown Source) at Microsoft.Maui.MauiContext+WrappedServiceProvider.GetService + 0x2c (Unknown Source) at Microsoft.Maui.MauiContext+WrappedServiceProvider.GetService + 0x2c (Unknown Source) at Microsoft.Maui.MauiContext+WrappedServiceProvider.GetService + 0x2c (Unknown Source) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService + 0x28 (Unknown Source) at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService + 0xb (Unknown Source) at Microsoft.Maui.ElementHandlerExtensions.GetRequiredService + 0x7 (Unknown Source) at Microsoft.Maui.Handlers.LabelHandler.MapFont + 0x0 (Unknown Source)

Steps to Reproduce

I have not really tried to verify this with a new/sample App. The only error I can reproduce in our App is the one when closing the app while an entry is focused.

Link to public reproduction project repository

No response

Version with bug

10.0.30

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

9.0.110 SR11

Affected platforms

Android

Affected platform versions

Mostly Android 16

Did you find any workaround?

No response

Relevant log output

[MihuBot]

I'm a bot. Here are possible related and/or duplicate issues (I may be wrong):

• IServiceProvider is disposed with new Maui Project @ Android #32750
• NET10 - Exception on quit #32600
• NET10 - Crash when bringing app to foreground #33597

[sheiksyedm]

@mblamauer Can you try with latest version 10.0.31?

[cschwarz]

@sheiksyedm we still see this exception in Sentry in builds based on 10.0.31.

[idiidi]

10.0.31 still causes the error for me too

[sheiksyedm]

@idiidi I hope this issue will be resolved with this PR.
#33765

[dartasen]

Having the same issue since .NET 10 upgrade :

Can happen randomly when opening the app

System.ObjectDisposedException: Cannot access a disposed object.
Object name: 'IServiceProvider'.
  at void ThrowHelper.ThrowObjectDisposedException()() in ThrowHelper.cs:line 16
  at object ServiceProviderEngineScope.GetService(Type serviceType)() in ServiceProviderEngineScope.cs:line 47
  at object WrappedServiceProvider.GetService(Type serviceType) x 3() in MauiContext.cs:line 87
  at HideSoftInputOnTappedChangedManager ServiceProviderServiceExtensions.GetService<HideSoftInputOnTappedChangedManager>(IServiceProvider provider)() in ServiceProviderServiceExtensions.cs:line 25
  at HideSoftInputOnTappedChangedManager ElementHandlerExtensions.GetService<HideSoftInputOnTappedChangedManager>(IElementHandler handler)() in ElementHandlerExtensions.cs:line 49
  at void ContentPage.UpdateHideSoftInputOnTapped()() in ContentPage.Mapper.cs:line 40
  at ContentPage()+(object _, NavigatedToEventArgs _) => { }() in ContentPage.cs:line 61
  at void Page.SendNavigatedTo(NavigatedToEventArgs args)() in Page.cs:line 774
  at void Shell.SendNavigated(ShellNavigatedEventArgs args)() in Shell.cs:line 1624
  at Shell()+(object _, ShellNavigatedEventArgs args) => { } [0]() in Shell.cs:line 1188
  at void ShellNavigationManager.HandleNavigated(ShellNavigatedEventArgs args)+FireNavigatedEvents(ShellNavigatedEventArgs a, Shell shell)() in ShellNavigationManager.cs:line 274
  at void ShellNavigationManager.HandleNavigated(ShellNavigatedEventArgs args)+() => { }() in ShellNavigationManager.cs:line 264
  at void BaseShellItem.OnAppearing(Action action)() in BaseShellItem.cs:line 172
  at void ShellNavigationManager.HandleNavigated(ShellNavigatedEventArgs args)() in ShellNavigationManager.cs:line 262
  at void ShellNavigationManager.HandleNavigated(ShellNavigatedEventArgs args)+WaitForWindowToSet(object sender, EventArgs e)() in ShellNavigationManager.cs:line 243
  at void Element.OnChildAdded(Element child)() in Element.cs:line 632
  at void ShellContent.OnChildAdded(Element child)() in ShellContent.cs:line 174
  at void Element.AddLogicalChild(Element element)() in Element.cs:line 225
  at void ShellContent.set_ContentCache(Page value)() in ShellContent.cs:line 216
  at Page ShellContent.Microsoft.Maui.Controls.IShellContentController.GetOrCreateContent()() in ShellContent.cs:line 92
  at View ShellSectionRenderer.OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)() in ShellSectionRenderer.cs:line 130
  at IntPtr Fragment.n_OnCreateView_Landroid_view_LayoutInflater_Landroid_view_ViewGroup_Landroid_os_Bundle_(IntPtr jnienv, IntPtr native__this, IntPtr native_inflater, IntPtr native_container, IntPtr native_savedInstanceState)()

[a-pagano]

We are seeing similar issues quite frequently on iOS and Android and haven't been able to find the root cause. This has been occurring only since we updated to 10.X:

iOS:

System.ObjectDisposedException: ObjectDisposed_Generic
ObjectDisposed_ObjectName_Name, IServiceProvider
  at void ThrowHelper.ThrowObjectDisposedException()()
  at object ServiceProviderEngineScope.GetService(Type)()
  at object WrappedServiceProvider.GetService(Type serviceType)()
  at object ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider, Type)()
  at IApplication ServiceProviderServiceExtensions.GetRequiredService<IApplication>(IServiceProvider)()
  at IApplication ElementHandlerExtensions.GetRequiredService<IApplication>(IElementHandler handler)()
  at void PageViewController.TraitCollectionDidChange(UITraitCollection previousTraitCollection)()
  at void __Registrar_Callbacks__.callback_927_Microsoft_Maui_Platform_PageViewController_TraitCollectionDidChange(IntPtr pobj, IntPtr sel, IntPtr p0, IntPtr* exception_gchandle)()

Android:

System.ObjectDisposedException: ObjectDisposed_Generic
ObjectDisposed_ObjectName_Name, IServiceProvider
  at void ThrowHelper.ThrowObjectDisposedException()()
  at object ServiceProviderEngineScope.GetService(Type)()
  at object WrappedServiceProvider.GetService(Type serviceType) x 3()
  at HideSoftInputOnTappedChangedManager ServiceProviderServiceExtensions.GetService<HideSoftInputOnTappedChangedManager>(IServiceProvider)()
  at HideSoftInputOnTappedChangedManager ElementHandlerExtensions.GetService<HideSoftInputOnTappedChangedManager>(IElementHandler handler)()
  at void InputView.MapIsFocused(IViewHandler handler, IView view)()
  at void PropertyMapperExtensions.AppendToMapping<TVirtualView, TViewHandler>(IPropertyMapper<TVirtualView, TViewHandler> propertyMapper, string key, Action<TViewHandler, TVirtualView> method)+(IEntryHandler handler, IEntry view, Action<IElementHandler, IElement> action) => { }()
  at void <>c__DisplayClass0_0<IEntry, IEntryHandler>.<ModifyMapping>g__newMethod|0(?)+newMethod(IEntryHandler handler, IEntry view)()
  at void PropertyMapper<TVirtualView, TViewHandler>.Add(string key, Action<TViewHandler, TVirtualView> action)+(IElementHandler h, IElement v) => { }()
  at bool PropertyMapper.TryUpdatePropertyCore(string key, IElementHandler viewHandler, IElement virtualView)()
  at void PropertyMapper.UpdateProperty(IElementHandler viewHandler, IElement virtualView, string property)()
  at void ElementHandler.UpdateValue(string property)()
  at void Element.UpdateHandlerValue(string property, bool valueChanged)()
  at void VisualElement.UpdateHandlerValue(string property, bool valueChanged)()
  at void Element.OnBindablePropertySet(BindableProperty property, object original, object value, bool changed, bool willFirePropertyChanged)()
  at void BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, object value, bool currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, bool silent)()
  at void BindableObject.SetValueCore(BindableProperty property, object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes, SetterSpecificity specificity)()
  at void BindableObject.SetValue(BindablePropertyKey propertyKey, object value, SetterSpecificity specificity)()
  at void VisualElement.Microsoft.Maui.IView.set_IsFocused(bool value)()
  at void ViewHandler.OnPlatformViewFocusChange(object sender, FocusChangeEventArgs e)()
  at void IOnFocusChangeListenerImplementor.OnFocusChange(View, bool)()
  at void IOnFocusChangeListenerInvoker.n_OnFocusChange_Landroid_view_View_Z(IntPtr jnienv, IntPtr native__this, IntPtr native_v, sbyte native_hasFocus)()

[hwsmo]

The error also occurs under Windows. The stack trace is shown below:

at Microsoft.Extensions.DependencyInjection.ServiceLookup.ThrowHelper.ThrowObjectDisposedException() at Microsoft.Maui.Handlers.LabelHandler.MapFont(ILabelHandler handler, ILabel label) at Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.LayoutHandler.SetVirtualView(IView view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.ContentViewHandler.UpdateContent(IContentViewHandler handler) at Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view) at Microsoft.Maui.Handlers.ContentViewHandler.SetVirtualView(IView view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.LayoutHandler.SetVirtualView(IView view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.LayoutHandler.SetVirtualView(IView view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.ContentViewHandler.UpdateContent(IContentViewHandler handler) at Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view) at Microsoft.Maui.Handlers.ContentViewHandler.SetVirtualView(IView view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.ContentViewHandler.UpdateContent(IContentViewHandler handler) at Microsoft.Maui.Controls.VisualElement.UpdateHandlerValue(String property, Boolean valueChanged) at Microsoft.Maui.Controls.Element.OnBindablePropertySet(BindableProperty property, Object original, Object value, Boolean changed, Boolean willFirePropertyChanged) at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, Boolean silent) at Microsoft.Maui.Controls.Setter.Apply(BindableObject target, SetterSpecificity specificity) at Microsoft.Maui.Controls.TriggerBase.OnConditionChanged(BindableObject bindable, Boolean oldValue, Boolean newValue) at Microsoft.Maui.Controls.BindingCondition.OnBoundPropertyChanged(BindableObject bindable, Object oldValue, Object newValue) at Microsoft.Maui.Controls.Element.OnBindablePropertySet(BindableProperty property, Object original, Object value, Boolean changed, Boolean willFirePropertyChanged) at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, Boolean silent) at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes, SetterSpecificity specificity) at Microsoft.Maui.Controls.DispatcherExtensions.DispatchIfRequired(IDispatcher dispatcher, Action action) at App.ViewModels.BaseViewModelRecipient.OnPropertyChanged(PropertyChangedEventArgs _eventArgs) in C:\app\src\Controller\Client\ViewModels\BaseViewModel.cs:line 1033 at App.ViewModels.DocumentLookupViewModel.OnPropertyChanged(PropertyChangedEventArgs _eventArgs) in C:\app\src\Controller\Client\ViewModels\Lookups\Elpos\DocumentLookupViewModel.cs:line 396 at CommunityToolkit.Mvvm.ComponentModel.ObservableObject.SetProperty[T](T& field, T newValue, String propertyName) at App.ViewModels.DocumentLookupViewModel.set_CurrentDocumentType(DocumentTypeViewModel value) in C:\app\src\Controller\Client\ViewModels\Lookups\Elpos\DocumentLookupViewModel.cs:line 381 at App.ViewModels.DocumentLookupViewModel.OnPropertyChanged(PropertyChangedEventArgs _eventArgs) in C:\app\src\Controller\Client\ViewModels\Lookups\Elpos\DocumentLookupViewModel.cs:line 404 at CommunityToolkit.Mvvm.ComponentModel.ObservableObject.SetProperty[T](T& field, T newValue, String propertyName) at App.ViewModels.LookupViewModel.set_ResultLookupItem(LookupItemViewModel value) in C:\app\src\Controller\Client\ViewModels\Lookups\LookupViewModel.cs:line 212 at App.Views.ContentViews.LookupView.OnResultItemChanged(BindableObject _bindable, Object _oldValue, Object _newValue) in C:\app\src\PowerbirdMobile\Views\ContentViews\Lookups\LookupView.xaml.cs:line 94 at Microsoft.Maui.Controls.Element.OnBindablePropertySet(BindableProperty property, Object original, Object value, Boolean changed, Boolean willFirePropertyChanged) at Microsoft.Maui.Controls.BindableObject.SetValueActual(BindableProperty property, BindablePropertyContext context, Object value, Boolean currentlyApplying, SetValueFlags attributes, SetterSpecificity specificity, Boolean silent) at Microsoft.Maui.Controls.BindableObject.SetValueCore(BindableProperty property, Object value, SetValueFlags attributes, SetValuePrivateFlags privateAttributes, SetterSpecificity specificity) at Microsoft.Maui.Controls.DispatcherExtensions.DispatchIfRequired(IDispatcher dispatcher, Action action) at App.ViewModels.BaseViewModelValidator.OnPropertyChanged(PropertyChangedEventArgs _eventArgs) in C:\app\src\Controller\Client\ViewModels\BaseViewModel.cs:line 687 at App.ViewModels.TimeRecordingDataViewModel.OnPropertyChanged(PropertyChangedEventArgs _eventArgs) in C:\app\src\Controller\Client\ViewModels\Pages\Modules\TimeRecording\TimeRecordingViewModel.cs:line 213 at App.ViewModels.TimeRecordingDataViewModel.set_Document(DocumentLookupItemViewModel value) in C:\app\src\Controller\build\obj\Controller\Debug\net10.0-windows10.0.22621.0\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.ObservablePropertyGenerator\App.ViewModels.TimeRecordingDataViewModel.g.cs:line 54 at App.ViewModels.TimeRecordingViewModel.Receive(DocumentLookupItemViewModel _document) in C:\app\src\Controller\Client\ViewModels\Pages\Modules\TimeRecording\TimeRecordingViewModel.cs:line 392 at App.ViewModels.TimeRecordingViewModel.<Receive>d__12.MoveNext() in C:\pbm_main\src\Controller\Client\ViewModels\Pages\Modules\TimeRecording\TimeRecordingViewModel.cs:line 456 at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__124_0(Object state) at Microsoft.UI.Dispatching.DispatcherQueueSynchronizationContext.<>c__DisplayClass2_0.<Post>b__0()

[mblamauer]

10.0.40 fixed this for us - closing this issue