There is an important difference between this report in Load Case mode and in Load Combination Mode. As mentioned BS5950 Lambda Critical , the report for Load Case mode is based on 16 load combinations that are generated internally by RAM Frame.

In Load Combination Mode, the Lambda Critical report is based on the user defined load combinations created in this mode (see Load Combinations ). Only the notional load terms in a load combination are considered to calculate Lambda Critical values in this report.