I have a WPF application which was running fine in production till last week. There was no change at all but it started slowing down and crashing with below error. This is built on .NET 4.0 and is in production for many years. Any input on this is highly appreciated. Tried many ways to replicate from Dev environment but not happening at all.
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.OutOfMemoryException
at System.Windows.DependencyObject.InsertEntry(System.Windows.EffectiveValueEntry, UInt32)
at System.Windows.DependencyObject.SetEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.UIElement.InvalidateForceInheritPropertyOnChildren(System.Windows.Media.Visual, System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
at System.Windows.UIElement.OnIsEnabledChanged(System.Windows.DependencyObject, System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex, System.Windows.DependencyProperty, System.Windows.PropertyMetadata, System.Windows.EffectiveValueEntry, System.Windows.EffectiveValueEntry ByRef, Boolean, Boolean, System.Windows.OperationType)
at System.Windows.DependencyObject.CoerceValue(System.Windows.DependencyProperty)
at System.Windows.FrameworkElement.InvalidateForceInheritPropertyOnChildren(System.Windows.DependencyProperty)
The remainder of the message was truncated.
Exception Info: System.InvalidOperationException
The user PC has only .NET 4.7 installed in it when checked. Just wondering if this could be something linked to .NET Framework version?