Concrete Design 2011 Maximum Load Combinations

Hi,

Am using the 22.01.00.39 version of STAAD pro. Every time am designing concrete structure using the 2011 it only uses the first load combination in the list of combinations I've listed prior to concrete design line i.e. if I type Load List 6 to 25 the design results for concrete uses only Load 6 but if you check the maximum stresses on individual members it says different governing load combinations. So the concrete members are not being design for the governing load combinations. Why is this?

For steel design I don't have any problem with designing members using the maximum load combinations applicable with the members. The program uses the maximum load combinations applicable for each members from the load list typed.

Thanks.