System.ArgumentException: '_', hexadecimal value 0x1F, is an invalid character.
at System.Xml.XmlEncodedRawTextWriter.InvalidXmlChar(Int32 ch, Char* pDst, Boolean entitize)
at System.Xml.XmlEncodedRawTextWriter.WriteElementTextBlock(Char* pSrc, Char* pSrcEnd)
at System.Xml.XmlEncodedRawTextWriter.WriteString(String text)
at System.Xml.XmlWellFormedWriter.WriteString(String text)
at Microsoft.CommerceServer.Catalog.Internal.XmlErrorsBase.GetExternalError(Int32 lineNumber, String errorMessage)
at Microsoft.CommerceServer.Catalog.Internal.XmlErrorsBase.GetExternalError(String errorMessage)
at Microsoft.CommerceServer.Internal.CatalogExport.Export(Object obj)
at Microsoft.CommerceServer.Internal.CatalogExport.Export(Guid operationId)
at Microsoft.CommerceServer.Catalog.Internal.CatalogExportService.Export(ExportOptions exportOptions, String fileName)
at Microsoft.CommerceServer.Catalog.Internal.CatalogExportService.Page_Load(Object sender, EventArgs e)
It looks like the catalog export fails, then it fails again trying to write the error message. It looks like bad data, but we can't find anything. Anyone seen this before?