Watcher list disappeared

[CCRcmcpe]

I used it for 20 days, someday the entire watcher list disappeared. I found this crash in Event Viewer:

Application: CompactGUI.exe
CoreCLR Version: 9.0.1025.47515
.NET Version: 9.0.10
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.FileNotFoundException: 
File name: 'System.Linq.Parallel, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
   at CompactGUI.Core.Analyser.AnalyseFolder(CancellationToken cancellationToken)
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
   at CompactGUI.Core.Analyser.AnalyseFolder(CancellationToken cancellationToken)
   at CompactGUI.Core.Analyser.GetAnalysedFilesAsync(CancellationToken token)
   at CompactGUI.Watcher.Watcher.Analyse(String folder, Boolean checkDiskModified, CancellationToken cToken)
   at CompactGUI.Watcher.Watcher.ParseWatchers(Boolean ParseAll, CancellationToken cToken)
   at CompactGUI.Watcher.Watcher.RunWatcher(Boolean runAll, CancellationToken cToken)
   at CompactGUI.Watcher.Watcher.OnSystemIdle()
   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_0(Object state)
   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)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---w
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   at MS.Internal.CulturePreservingExecutionContext.Run(CulturePreservingExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   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)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at CompactGUI.Application.Main()

Time of the crash coincides with a Windows update 2025-11 .NET 9.0.11 Update for x64 Client (KB5071067). This suggests the update mechanism is not secure enough to not break apps. However, the watcher list being lost suggests another bug.

Windows 11 24H2 26100.7171
4.0 beta6