Value cannot be null. (Parameter 'item') error

[Harry Wu]

It happened when I update the metadata and media of a new added game library.

Value cannot be null. (Parameter 'item')

App: LaunchBox
Version: 13.0
Type: System.ArgumentNullException
Site: Int32 AddInternal(System.Object)
Source: System.Windows.Forms

at System.Windows.Forms.ListBox.ObjectCollection.AddInternal(Object item)
at Unbroken.LaunchBox.Windows.Desktop.Forms.ErrorsForm..ctor(String text, IEnumerable`1 errors)
at Unbroken.LaunchBox.Windows.Desktop.ImageDownloaderHelp.<>c__DisplayClass0_0.AddReflectiveInterpreter()
at System.Windows.Threading.DispatcherOperation.InvokeDelegateCore()
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
--- End of stack trace from previous location where exception was thrown ---
at System.Windows.Threading.DispatcherOperation.Wait(TimeSpan timeout)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherOperation operation, CancellationToken cancellationToken, TimeSpan timeout)
at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority, CancellationToken cancellationToken, TimeSpan timeout)
at System.Windows.Threading.Dispatcher.Invoke(Action callback, DispatcherPriority priority)
at Unbroken.LaunchBox.Windows.Threading.NewObservableClient(Object , Object , DispatcherPriority )
at Unbroken.LaunchBox.Windows.Threading.Invoke(Action callback, DispatcherPriority priority)
at Unbroken.LaunchBox.Windows.Desktop.ImageDownloaderHelp.<>c.AwakeTransactionEvent(Object , DispatcherPriority )
at Unbroken.LaunchBox.Windows.Desktop.ImageDownloaderHelp.<>c.SortReflectiveInterpreter()
at Unbroken.LaunchBox.Windows.Threading.<>c__DisplayClass0_0.RegisterAdvisableResolver(Object )
at Unbroken.LaunchBox.Windows.Threading.<>c__DisplayClass0_0.ValidatePreparedBridge()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location where exception was thrown ---
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

Recent Log:

14:55:12 Exception