When we use new/custom load groups the program is not generating Load Combinations for the respective Wind loads as it does when using default load groups. It seems to be generating as if we were using the cross combination option.
Current LEAP Bridge Concrete version has the limitation for new Load Groups (with modified eta factors). We currently have enhancement request filed for the request (332700) so that the new load groups behave the same as the default load groups when load combinations are generated.
Until this enhancement is implemented the only work around currently we have when using the new load groups (with modified eta factor) is delete the extra loads that generated. Or the other option is to use the default load groups and then Edit each load combination and modify the eta factor.