Error in adding a case to Switch activity

Hitting Enter after entering a case value in Swith activity. Getting the following error -
Error: System.NullReferenceException: Object reference not set to an instance of an object.
at System.Windows.StyleHelper.FindNameInTemplateContent(DependencyObject container, String childName, FrameworkTemplate frameworkTemplate)
at System.Windows.TemplateNameScope.System.Windows.Markup.INameScope.FindName(String name)
at MS.Internal.Data.ElementObjectRef.GetObject(DependencyObject d, ObjectRefArgs args)
at MS.Internal.Data.ObjectRef.GetDataObject(DependencyObject d, ObjectRefArgs args)
at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.VerifySourceReference(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Task.Run(Boolean lastChance)
at MS.Internal.Data.DataBindEngine.Run(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), HResult -2147467261

Hi @endyisms,

Can you share your workflow and a screenshot of what you have entered into the Switch activity?

Here is the workflow - Simply add a sequence - Add a Switch Activity - At the Case, try entering the case value and hit enter.switch1

Since I am a new user, can’t upload two images in one go and can’t share the project either. Hereby attaching the screenshot of the error.switch