2261898 - Error 2601 when sending update from primary to replicate - SAP RS

• On the primary server an update is run which runs just fine
• On the replication side - it fails with the error:

        ERROR #1028 DSI EXEC(103(1) ASE1570.dbname) - neric/dsi/dsiqmint.c(4781)
        Message from server: Message: 2601, State 4, Severity 14 -- 'Attempt to insert duplicate key row in object 'test' with unique index 'idx2''.
        Message from server: Message: 3621, State 0, Severity 10 -- 'Command has been aborted.
        THREAD FATAL ERROR #5049 DSI EXEC(103(1) ASE1570.dbname) - neric/dsi/dsiqmint.c(4794)
        The DSI thread for database 'ASE1570.dbname' is being shutdown. DSI received data server error #2601 which is mapped to STOP_REPLICATION. See logged data server errors for more information. 
        The data server error was caused by output command #0 mapped from input command #0 of the failed transaction.

SAP Replication Server (RS)

"sp_setrepdefmode newtest", "rolling update" , KBA , BC-SYB-REP , Sybase Replication Server (standalone) , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem