Solution : https://service.sap.com/sap/support/notes/1125797 (SAP Service marketplace login required)
Key words :
REPORTWRITER, SGRW_UNICODE, SGRW_RC_TEXT, SGRW_LANGUAGE, SGRW_LAYOUT,SGRW_UPGRADE
Related Notes :
| 1375438 | Globalization Collection Note |
| 1319517 | Unicode Collection Note |
| 1131035 | RW: Automatic text output in Unicode systems |