Unstable database diagram

[lordofscripts]

I was very excited about this program but apparently it was not well tested before its release. I am using the latest version downloaded from here in Windows 10.

I created a new Database diagram, the UX is not very intuitive but it kind of works. But it is very unstable, I had like 20 crashes and was not even able to finish the diagram. The error is always the same but happens under a variety of circumstances. And when checking a checkbox, one has to click twice (the first time it is ignored) and cross your fingers that the double click doesn't crash the application.

Instrumind ThinkComposer

APPLICATION ERROR REPORT
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Product Version...: 1.5.1604
Error Message.....: The Item being edited by the exposing DataGridRow must implement IDynamicStore.

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ENVIRONMENT
Product Version...: 1.5.1604
Available Memory..: 136044544
OS Version........: Microsoft Windows NT 6.2.9200.0
.NET Version......: 4.0.30319.42000
Culture...........: en-US

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SOURCE EXCEPTION...
    Message....: The Item being edited by the exposing DataGridRow must implement IDynamicStore.
    Type.......: Instrumind.Common.UsageAnomaly
    Stack-Trace:    at Instrumind.Common.Visualization.Display.PerformDirectReadWrapped(IDynamicStoreDataGridEditor SourceEditor, String FieldName, DataGridRow EditingRow)
   at Instrumind.Common.Visualization.Display.PerformDirectRead(IDynamicStoreDataGridEditor SourceEditor, String FieldName, DataGridRow EditingRow)
   at Instrumind.Common.Visualization.Widgets.ExtendedEditText.TextBox_LostFocus(Object sender, RoutedEventArgs e)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
   at System.Windows.Controls.Primitives.TextBoxBase.OnLostFocus(RoutedEventArgs e)
   at System.Windows.UIElement.IsFocused_Changed(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.Controls.TextBox.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.ClearValueCommon(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata)
   at System.Windows.DependencyObject.ClearValue(DependencyPropertyKey key)
   at System.Windows.Input.FocusManager.OnFocusedElementChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
   at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
   at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
   at System.Windows.Input.FocusManager.SetFocusedElement(DependencyObject element, IInputElement value)
   at System.Windows.Input.FocusManager.GetFocusedElement(DependencyObject element, Boolean validate)
   at System.Windows.FrameworkElement.OnPreviewGotKeyboardFocus(Object sender, KeyboardFocusChangedEventArgs e)
   at System.Windows.Input.KeyboardFocusChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.KeyboardDevice.TryChangeFocus(DependencyObject newFocus, IKeyboardInputProvider keyboardInputProvider, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
   at System.Windows.Input.KeyboardDevice.Focus(DependencyObject focus, Boolean askOld, Boolean askNew, Boolean forceToNullIfFailed)
   at System.Windows.Input.KeyboardDevice.ReevaluateFocusCallback(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)
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