Error on exporting to PDF - Exception in formula - this field is not known

We just upgraded the crystal to new CRJ files and the reports started to throw errors.

We are sending the output as a byte array stream

inputStream = (ByteArrayInputStream)reportClientDoc.getPrintOutputController().export(ReportExportFormat.PDF);

We have 2 procedures in the report and exception is thrown for every formula based on procedure 1.

If we remove all formulas report works fine. Does anyone have a clue.

Just to let you know, the reports were working fine using previous crystal APIs. Its only after new jars, the exception is thrown. Any help is highly appreciated.