Hello.  Am receiving the follow CTD error on startup of Pilot2ATC, the main window appears for a few seconds then I receive this.  I attempted a full reinstall but get the same error.

 

Application: Pilot2ATC_3.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentException
   at System.Windows.DependencyObject.SetValueCommon(System.Windows.DependencyProperty, System.Object, System.Windows.PropertyMetadata, Boolean, Boolean, System.Windows.OperationType, Boolean)
   at System.Windows.DependencyObject.SetValue(System.Windows.DependencyProperty, System.Object)
   at Pilot2ATC_3.ViewModel.MainWindowVM.ShowFltPlan()
   at Pilot2ATC_3.MainWindow.DataLoaded(System.Object, System.ComponentModel.RunWorkerCompletedEventArgs)
   at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(System.ComponentModel.RunWorkerCompletedEventArgs)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at MS.Internal.CulturePreservingExecutionContext.CallbackWrapper(System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at MS.Internal.CulturePreservingExecutionContext.Run(MS.Internal.CulturePreservingExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndWrapper.WndProc(IntPtr, Int32, IntPtr, IntPtr, Boolean ByRef)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate, System.Object, Int32)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(System.Windows.Threading.DispatcherPriority, System.TimeSpan, System.Delegate, System.Object, Int32)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr, Int32, IntPtr, IntPtr)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
   at System.Windows.Application.RunDispatcher(System.Object)
   at System.Windows.Application.RunInternal(System.Windows.Window)
   at Pilot2ATC_3.App.Main()

 

Immediately follow the above error i receive this error as well in event logs:

Faulting application name: Pilot2ATC_3.exe, version: 3.0.0.0, time stamp: 0xe7114779
Faulting module name: KERNELBASE.dll, version: 10.0.26100.6584, time stamp: 0x0a9b38fe
Exception code: 0xe0434352
Fault offset: 0x00000000000c66ca
Faulting process id: 0x467C
Faulting application start time: 0x1DC2FD9FCDCB6BC
Faulting application path: D:\Pilot2ATC_3_x64\Pilot2ATC_3.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report Id: 6b36894b-71a7-4bb4-963d-bc84891a9d81
Faulting package full name: 
Faulting package-relative application ID: 

 

 

These are the only entries from the Pilot2ATC logs.

2025-09-27 14:10:24.1035|INFO|Pilot2ATC_3.ViewModel.MainWindowVM|AppSettings Loaded.  PTT Joystick Name: PFC Cirrus Yoke
2025-09-27 14:10:24.4294|INFO|Pilot2ATC_3.Licensing.frmLicense|License Checked OK

2025-09-27 14:10:36.1234|INFO|Pilot2ATC_3.ViewModel.MainWindowVM|Program StartedPilot 2 ATC (P2A) - version 3.0.0.0_EarlyAccess 0.2.3C  9/27/2025 2:10:36 PM
2025-09-27 14:10:36.5527|INFO|Pilot2ATC_3.ViewModel.MainWindowVM|Pilot2ATC® starting initialization.
2025-09-27 14:10:36.5527|INFO|Pilot2ATC_3.ViewModel.MainWindowVM|NumberDecimalSeparator: 

Thanks,

Bruce

 

 

Dave helped me locate the issue on a separate email thread. Dave suggested that my Pilot2ATC AppSettings file may have a strange value in it so I renamed it and had Pilot2ATC rebuild it. Functioning normally again.

The AppSettings.xml file is located at:

c:\users\<UserName>\AppData\Roaming\P2A_300\Settings\AppSettings.xml