Solution : https://service.sap.com/sap/support/notes/544493 (SAP Service marketplace login required)
Key words : 
0a            import support package 12, symptom termination x299, cl_rsr_mdx_olap_request/add_request_inst_4 program, 0a support package 12, bw support packages, 0b support package 05, 0b            import, 0a patch 12, support package, support package 05
Related Notes : 
       
| 550851 | X299(BRAIN): CL_RSR_MDX_OLAP_REQUEST, ADD_REQUEST_INST_6 | 
| 523249 | SAPBWNews BW 3.0B Support Package 12 | 
| 523217 | SAPBWNews for BW 3.0A Support Package 12 | 
| 493976 | SAPBWNews BW 3.0B Support Package 05 |