System.Runtime.InteropServices.COMException (0x88980406): UCEERR_RENDERTHREADFAILURE (0x88980406)

[larsen0815]

Version 2.1.7

Yesterday, I got the notification about "80% charged". On right clicking the system tray icon, the context menu still opens, but most of the entries seem to do nothing. Sleep still works, though. After waking up (must have been in hibernation), a right click leads to this:

System.Runtime.InteropServices.COMException (0x88980406): UCEERR_RENDERTHREADFAILURE (0x88980406)
   at System.Windows.Media.Composition.DUCE.Channel.SyncFlush()
   at System.Windows.Interop.HwndTarget.UpdateWindowSettings(Boolean enableRenderTarget, Nullable`1 channelSet)
   at System.Windows.Interop.HwndTarget.OnShowWindow(Boolean enableRenderTarget)
   at System.Windows.Interop.HwndTarget.HandleMessage(WindowMessage msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

After clicking on OK, this error pops up:

System.NullReferenceException: Object reference not set to an instance of an object.
   at Wpf.Ui.Controls.NavigationView.UpdateContent(Object content, Object dataContext)
   at Wpf.Ui.Controls.NavigationView.NavigateInternal(INavigationViewItem viewItem, Object dataContext, Boolean addToNavigationStack, Boolean isBackwardsNavigated)
   at Wpf.Ui.Controls.NavigationView.Navigate(Type pageType, Object dataContext)
   at Percentage.App.MainWindow.NavigateToPage[T]()
   at Percentage.App.NotifyIconWindow.OnAboutMenuItemClick(Object sender, RoutedEventArgs e)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)

Might be related to #64 (same error "UCEERR_RENDERTHREADFAILURE").
Second error probably related to #57.