error LaunchBox 12.3

[Filippo Fraternali]

Object reference not set to an instance of an object.

App: Big Box
Version: 12.3
Type: System.NullReferenceException
Site: System.Object VisitTests(System.Object)
Source: BigBox

at Unbroken.LaunchBox.Windows.BigBox.ViewModels.PlatformFiltersViewModelBase.VisitTests(Object )
at Unbroken.LaunchBox.Windows.BigBox.ViewModels.PlatformFiltersViewModelBase.OnEnter()
at Unbroken.LaunchBox.Windows.BigBox.ViewModels.MainViewModel.RateEvent(Object )
at Unbroken.LaunchBox.Windows.BigBox.ViewModels.MainViewModel.OnEnter()
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.PrepareTransformerSerializer(Object , Object , DispatcherPriority )
at Unbroken.LaunchBox.Windows.Threading.Invoke(Action callback, DispatcherPriority priority)
at Unbroken.LaunchBox.Windows.Threading.Invoke(DispatcherPriority priority, Action callback)
at Unbroken.LaunchBox.Windows.BigBox.ViewModels.MainViewModel.ChangePolicy(DispatcherPriority , Object )
at Unbroken.LaunchBox.Windows.BigBox.ViewModels.MainViewModel.RegisterReg(Guid value)
at AlgoProducer.InitProducer(Object , Guid res, AlgoProducer )
at Unbroken.LaunchBox.Windows.BigBox.ViewModels.MainViewModel.<>c__DisplayClass341_1.ResetPage()
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:

23:52:45 Exception