Solution : https://service.sap.com/sap/support/notes/1290733 (SAP Service marketplace login required)
Key words :
sapbwnews bw sp24 netweaver'04 stack 24, runtime error stack_state_no_roll_memory occurs, class cl_rsr_single_variable method _ex_in_convert, sap netweaver bi 7, program loops infinitely, sap nw bi7, sapbinews nw bi 7, 01 bi abap sp04, 50 import support package 24, 00 import support package 21
Related Notes :
1358694 | Time-dependent text not displayed correct in variable screen |
1168770 | Text variable replaced by time-dependent characteristics |