B79-Workspace-not-loading-correctly-with-MetaStrategy-inside

it looks as if B79 does not let workspace load strategy parameters correctly, does not load data and does not run automatically (despite "Auto-Run...." clicked on)

QUOTE:
System.NullReferenceException: Object reference not set to an instance of an object.
at WealthLab8.designerMetaStrategy.UpdateStrategyFromUI()
at WealthLab8.cwStrategy.FlushSingleton()
at WealthLab8.cwStrategy.AllowWindowClose()
at WealthLab8.MainWindow.AllowWindowClose()
at WealthLab8.MainWindow.StopAttribute(Object task, CancelEventArgs ivk)
at System.Windows.Window.WmClose()
at System.Windows.Window.WindowFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.PublicHooksFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
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)

What's the easiest way to roll back this update?

Thank you