Solution : https://service.sap.com/sap/support/notes/988087 (SAP Service marketplace login required)
Key words :
activate buffered insert explicitly, r3load -loadprocedure fast load, r3load -loadprocedure fast, r3load -loadprocedure dbsl, recent r3load patch, buffered insert, load + compress, patch level, symptom due, program error
Related Notes :
905614 | DB6: R3load -loadprocedure fast COMPRESS |
454173 | DB6: R3load migration accelerated with CLI LOAD |