Solution : https://service.sap.com/sap/support/notes/840080 (SAP Service marketplace login required)
Key words : 
sapbwnews bw support package 13 netweaver'04 stack 13, multiprovider returns incorrect data, 10 content            import support package 21, 0b            import support package 27, 50            import support package 13, 1 content support package 21, individual part providers, provide advance information, 0b support package 27, error program saplrrk0
Related Notes : 
       
| 783254 | SAPBWNews BW Support Package 13 NW'04 Stack 13 RIN | 
| 723263 | SAPBWNews BW 3.1 Content Support Package 21 | 
| 723258 | SAPBWNews BW 3.0B Support Package 27 | 
| 449477 | Switching the MultiProvider from "parallel" to "sequential" |