Using the attached project please start recording. You get Test Studio crash in a while.

More information provided in the bug opened for this feedback item.

Test Studio version used for repro 2013.1.1120

Exception in the log is:
ERROR: System.NullReferenceException Object reference not set to an instance of an object.
Object reference not set to an instance of an object.
Server stack trace: at ArtOfTest.WebAii.Design.ProjectModel.Providers.FileSystemProvider.UpdateTestFromLightTest(LightTest lightTest, TestBase test) at ArtOfTest.WebAii.Design.ProjectModel.Providers.FileSystemProvider.SaveLightTest(LightTest lightTest) at ArtOfTest.WebAii.Design.ProjectModel.Providers.FileSystemProvider.SaveProjectElements(IList`1 elements) at ArtOfTest.WebAii.Design.ProjectModel.Providers.Modules.LightProjectModule.<>c__DisplayClass5.b__4() at System.Threading.Tasks.Task.InnerInvoke() at System.Threading.Tasks.Task.Execute() Exception rethrown at [0]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at ArtOfTest.WebAii.Design.ProjectModel.Providers.Modules.ModuleBase.d__4.MoveNext() Exception rethrown at [1]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at ArtOfTest.WebAii.Design.ProjectModel.Providers.Modules.LightProjectModule.d__7.MoveNext() Exception rethrown at [2]: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccess(Task task) at Telerik.TestStudio.MainWindow.d__d.MoveNext() Exception rethrown at [3]: at System.Runtime.CompilerServices.AsyncMethodBuilderCore.b__0(Object state) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)