Grid Item - Exception is raised on sorting a Year column by clicking the column header

Constant, is this error the same error that we get when sorting a grid by a long value?
Thanks,
Todd
Exception:
System.InvalidOperationException: Failed to compare two elements in the array. ---> System.InvalidCastException: Specified cast is not valid.
  at DevExpress.Data.Helpers.ExpressiveSortHelpers.GetCompareRowCellInfoTypedCompareHelper.NullableCombarableMaker.Impl`1.<>c__DisplayClass37.<Make>b__34(CondencedAndSourceIndicesPair row1, CondencedAndSourceIndicesPair row2, Object v1, Object v2)
  at DevExpress.Data.Helpers.ExpressiveSortHelpers.CellComparerBuilder.Impl`1.<>c__DisplayClass4c.<Build>b__49(CondencedAndSourceIndicesPair r1, CondencedAndSourceIndicesPair r2)
  at DevExpress.Data.Helpers.ExpressiveSortHelpers.<>c__DisplayClassb.<MakeRowsCompare>b__3(CondencedAndSourceIndicesPair r1, CondencedAndSourceIndicesPair r2)
  at DevExpress.Data.Helpers.ExpressiveSortHelpers.ComparisonComparer`1.Compare(T x, T y)
  at System.Collections.Generic.ArraySortHelper`1.SwapIfGreater(T[] keys, IComparer`1 comparer, Int32 a, Int32 b)
  at System.Collections.Generic.ArraySortHelper`1.IntroSort(T[] keys, Int32 lo, Int32 hi, Int32 depthLimit, IComparer`1 comparer)
  at System.Collections.Generic.ArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer)
  --- End of inner exception stack trace ---
  at System.Collections.Generic.ArraySortHelper`1.Sort(T[] keys, Int32 index, Int32 length, IComparer`1 comparer)
  at System.Array.Sort[T](T[] array, Int32 index, Int32 length, IComparer`1 comparer)
  at System.Collections.Generic.List`1.Sort(Int32 index, Int32 count, IComparer`1 comparer)
  at DevExpress.Data.VisibleListSourceRowCollection.SortRows(DataColumnSortInfo[] sortInfo)
  at DevExpress.Data.DataController.DoSortRows()
  at DevExpress.Data.DataController.OnRefresh(Boolean useRowsKeeper)
  at DevExpress.Data.DataController.DoRefreshCore(Boolean useRowsKeeper)
  at DevExpress.Data.DataController.DoRefresh(Boolean useRowsKeeper)
  at DevExpress.Data.CurrencyDataController.DoRefresh(Boolean useRowsKeeper)
  at DevExpress.Data.DataController.DoSortGroupRefresh()
  at DevExpress.Data.DataController.EndUpdateCore(Boolean sortUpdate)
  at DevExpress.XtraGrid.Views.Base.ColumnView.EndDataUpdateCore(Boolean sortOnly)
  at DevExpress.XtraGrid.Views.Base.ColumnView.DoMouseSortColumn(GridColumn column, Keys key)
  at DevExpress.XtraGrid.Views.Grid.Handler.GridHandler.DoMouseSortColumn(GridColumn column, Keys key)
  at DevExpress.XtraGrid.Views.Grid.Handler.GridHandler.DoClickAction(BaseHitInfo hitInfo)
  at DevExpress.XtraGrid.Views.Base.ViewInfo.BaseSelectionInfo.CheckMouseUp(BaseHitInfo hitInfo)
  at DevExpress.XtraGrid.Views.Grid.Handler.GridHandler.OnMouseUp(MouseEventArgs ev)
  at DevExpress.Utils.Controls.BaseHandler.ProcessEvent(EventType etype, Object args)
  at DevExpress.XtraGrid.Views.Base.Handler.BaseViewHandler.ProcessEvent(EventType etype, Object args)
  at DevExpress.XtraGrid.GridControl.OnMouseUp(MouseEventArgs ev)
  at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
  at System.Windows.Forms.Control.WndProc(Message& m)
  at DevExpress.XtraEditors.Container.EditorContainer.WndProc(Message& m)
  at DevExpress.XtraGrid.GridControl.WndProc(Message& m)
  at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
  at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
  at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Hi Todd,

Yes, these errors appear to be caused by the same issue. We will continue working on a permanent solution and will keep you informed of our progress.

Thanks Alex!