Open Model Designer DetailView Layout Exception

With Model Design Opened in VisualStudio Or at Runtime, We get an exception using Xafari Property Editors. It also prevents the generation of the Layout Node after the exception hits. Seems like collection Properties are generated. changing all property editors on the View.Items to DevExpress seems to fix.
We have a Date and Enum Editor on the Detail View.

Here is the trace from VS popup error Window:
Object reference not set to an instance of an object.

at Xafari.Editors.Win.XafariLookupEditor.CreateControlCore()
at DevExpress.ExpressApp.Editors.ViewItem.CreateControl()
at DevExpress.ExpressApp.Win.Layout.WinLayoutManager.controlItem_QueryControl(Object sender, QueryControlEventArgs e)
at DevExpress.ExpressApp.Win.Layout.XafLayoutControlItem.RaiseQueryControl()
at DevExpress.ExpressApp.Win.Layout.XafLayoutControlItem.RaiseShowHide(Boolean visible)
at DevExpress.XtraLayout.BaseLayoutItem.SetVisible(Boolean lVisible)
at DevExpress.XtraLayout.BaseLayoutItem.UpdateChildren(Boolean visible)
at DevExpress.XtraLayout.LayoutControlItem.UpdateChildren(Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChild(BaseLayoutItem item, Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChildren(Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChild(BaseLayoutItem item, Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChildren(Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChild(BaseLayoutItem item, Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChildren(Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChild(BaseLayoutItem item, Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChildren(Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChild(BaseLayoutItem item, Boolean visible)
at DevExpress.XtraLayout.LayoutGroup.UpdateChildren(Boolean visible)
at DevExpress.XtraLayout.LayoutControlImplementor.UpdateRoot()
at DevExpress.XtraLayout.LayoutControlImplementor.InvalidateRootOffsetControlsAndScrolls()
at DevExpress.XtraLayout.LayoutControlImplementor.Invalidate()
at DevExpress.XtraLayout.LayoutControl.DevExpress.XtraLayout.ILayoutControl.Invalidate()
at DevExpress.XtraLayout.BaseLayoutItem.Invalidate()
at DevExpress.XtraLayout.LayoutGroup.Invalidate()
at DevExpress.XtraLayout.BaseLayoutItem.ComplexUpdate(Boolean shouldUpdateViewInfo, Boolean shouldResize, Boolean shouldArrangeTextSize)
at DevExpress.XtraLayout.LayoutItemContainer.EndUpdate()
at DevExpress.XtraLayout.LayoutItemContainer.EndChangeUpdate()
at DevExpress.XtraLayout.LayoutDesignerMethodsProvider.DevExpress.XtraLayout.ILayoutDesignerMethods.EndChangeUpdate()
at DevExpress.XtraLayout.LayoutControlImplementor.ProcessLookAndFeelStyleChanged()
at DevExpress.XtraLayout.LayoutControlImplementor.OnLookAndFeelStyleChanged(Object sender, EventArgs e)
at DevExpress.XtraLayout.LayoutControlImplementor.EndInitCore()
at DevExpress.XtraLayout.LayoutControlImplementor.set_UpdatedCount(Int32 value)
at DevExpress.XtraLayout.LayoutControlImplementor.EndInit()
at DevExpress.XtraLayout.LayoutControl.EndInit()
at DevExpress.ExpressApp.Win.Layout.WinLayoutManager.LayoutControls(IModelNode layoutNode, ViewItemsCollection viewItems)
at DevExpress.ExpressApp.Win.Core.ModelEditor.ModelEditorControllers.ModelEditorLayoutManagerProvider.InitializeLayout(ModelNode node, Boolean readOnly, Boolean isWinLayout)
at DevExpress.ExpressApp.Win.Core.ModelEditor.ModelEditorControllers.ModelEditorLayoutManagerProvider..ctor(ModelNode node, Boolean readOnly, Boolean isWinLayout)
at DevExpress.ExpressApp.Win.Core.ModelEditor.ModelEditorControl.ShowDetailViewLayout(ModelNode node, Boolean readOnly)
at DevExpress.ExpressApp.Win.Core.ModelEditor.ModelEditorControl.ShowLayoutIfNeed(ModelNode node, Boolean readOnly)
at DevExpress.ExpressApp.Win.Core.ModelEditor.ModelEditorViewController.set_CurrentModelNode(ModelTreeListNode value)
at DevExpress.ExpressApp.Win.Core.ModelEditor.ModelEditorViewController.ModelEditorControl_SelectedNodesChanged(Object sender, EventArgs e)
at DevExpress.ExpressApp.Win.Core.ModelEditor.HandlerWrapper.SafeExceute(Object obj, EventArgs e)