This ALWAYS happens in Revit using Direct Link

Message pops up; Anyone else get this all the time or is it just me? :)

Cannot export the 3D view:

The referenced object is not valid, possibly because it has been deleted from the database, or its creation was undone.

at Autodesk.Revit.DB.CustomExporter.Export(View view)

at DatasmithRevitExporter.DatasmithSyncRevitCommand.OnExecute(ExternalCommandData InCommandData, String& OutCommandMessage, ElementSet OutElements)

Usually closing and reopening Revit solves the issue, but a pain!