Solution : https://service.sap.com/sap/support/notes/561544 (SAP Service marketplace login required)
Key words :
rsdrc / form convert_sel_to_selc_selt illegal reduction, rsdrc function group, remote infocube reason, master data infoprovider, bw support packages, 0bimport support package 07, 0b support package 5, 0b support package 07, support package 6, support package