Randomly thrown - 'Fail' : 4. Wait for selection 'ByText' is '2017' on 'SelectYearSelect' by in Firefox: Unexpected error while waiting on condition. Error: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index at System.ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument argument, ExceptionResource resource) at ArtOfTest.WebAii.Controls.HtmlControls.HtmlSelect.get_SelectedOption() at ArtOfTest.WebAii.Design.IntrinsicTranslators.Descriptors.SelectVerificationDescriptor.ExtractData(IAutomationHost targetBrowser, DescriptorValueStore dataStore) at ArtOfTest.Common.Design.Extensibility.Descriptors.VerificationDescriptor.<PerformWait>b__30_0(IAutomationHost hst, DescriptorValueStore values) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Delegate.DynamicInvokeImpl(Object[] args) at ArtOfTest.Common.WaitAsync._worker_DoWork[T,V](Object waitParam)