Hi All,
During the generation of certain programs, syntax errors or runtime errors occur in Coverage Analyzer programs. It can happen during run of the shadow instance or 2nd shadow instance that the upgrade does not work due to syntax errors or run time errors (one symptom is that RFC into the system return error and do not start batch jobs). If you find something like COVREF or RSGENCOV in the dev_* traces refer to SAP Note 1650093.
Note:
For more information please refer to SAP Note 1650093 - Syntax error or runtime error in Coverage Analyzer
Best regards,
James Wong