SSMS Database Diagram Crash

I was attempting to create a database diagram with the SSMS 2012 diagramming tool today and ran into the following issue:"Attempted to read or write protected memory. This is often an indication that other memory is corrupt. (Microsoft.VisualStudio.OLE.Interop)"with the details:===================================Attempted to read or write protected memory. This is often an indication that other memory is corrupt. (Microsoft.VisualStudio.OLE.Interop)------------------------------Program Location:at Microsoft.VisualStudio.OLE.Interop.IOleCommandTarget.QueryStatus(Guid& pguidCmdGroup, UInt32 cCmds, OLECMD[] prgCmds, IntPtr pCmdText)at Microsoft.VisualStudio.Platform.WindowManagement.DocumentObjectSite.QueryStatus(Guid& pguidCmdGroup, UInt32 cCmds, OLECMD[] prgCmds, IntPtr pCmdText)at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.QueryStatus(Guid& pguidCmdGroup, UInt32 cCmds, OLECMD[] prgCmds, IntPtr pCmdText)at Microsoft.Internal.VisualStudio.Shell.Interop.IVsTrackSelectionExPrivate.Register()at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.ConnectSelectionContext()at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.Activate()at Microsoft.VisualStudio.Platform.WindowManagement.WindowManagerService.viewManager_ActiveViewChanged(Object sender, ActiveViewChangedEventArgs e)at System.EventHandler`1.Invoke(Object sender, TEventArgs e)at Microsoft.VisualStudio.PlatformUI.ExtensionMethods.RaiseEvent[TEventArgs](EventHandler`1 eventHandler, Object source, TEventArgs args)at Microsoft.VisualStudio.PlatformUI.Shell.ViewManager.SetActiveView(View view, ActivationType type)at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.ShowInternal(ShowFlags showFlags)at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.<Show>b__26()at Microsoft.VisualStudio.ErrorHandler.CallWithCOMConvention(Func`1 method)at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.Show()at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.MarshalingWindowFrame.<Microsoft.VisualStudio.Shell.Interop.IVsWindowFrame.Show>b__7a()at Microsoft.VisualStudio.Shell.ThreadHelper.Invoke[TResult](Func`1 method)at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.MarshalingWindowFrame.Microsoft.VisualStudio.Shell.Interop.IVsWindowFrame.Show()at Microsoft.SqlServer.Management.UI.VSIntegration.Editors.VirtualProject.CreateDesigner(Urn origUrn, DocumentType editorType, DocumentOptions aeOptions, IManagedConnection con, String fileName)at Microsoft.SqlServer.Management.UI.VSIntegration.Editors.VirtualProject.Microsoft.SqlServer.Management.UI.VSIntegration.Editors.ISqlVirtualProject.CreateDesigner(Urn origUrn, DocumentType editorType, DocumentOptions aeOptions, IManagedConnection con, String fileName)at Microsoft.SqlServer.Management.UI.VSIntegration.Editors.ISqlVirtualProject.CreateDesigner(Urn origUrn, DocumentType editorType, DocumentOptions aeOptions, IManagedConnection con, String fileName)at Microsoft.SqlServer.Management.UI.VSIntegration.Editors.VsDocumentMenuItem.CreateDesignerWindow(IManagedConnection mc, DocumentOptions options)at Microsoft.SqlServer.Management.UI.VSIntegration.Editors.VsDocumentMenuItem.InvokeDesigner(IManagedConnection connection)at Microsoft.SqlServer.Management.UI.VSIntegration.Editors.VsDocumentMenuItem.Invoke()at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.ToolsMenuItemBase.MenuInvokedHandler(Object sender, EventArgs args)So, after some digging, I found a post that suggested I upgrade my tools to SSMS 2014, which yielded the same results, and did not work.The next post suggestion I found recommended replacing the DLLs in the following location:C:\Program Files (x86)\Common Files\microsoft shared\Visual Database Tools\andC:\Program Files (x86)\Common Files\microsoft shared\MSDesigners8\Which also did not work.If anyone knows of a better work around, I'd like some input!