I have uploaded 2 files through the secure file upload. These show the differences.
The original file is the correct version. The 2nd file is the one that Staad changed automatically. Changes can be seen under the joint loads for Dead, Live, Roof Live and Seismic loads. At all 4 places; Staad has automatically changed the original file and added extra nodes to the same load.
These changes were seen after I closed and reopened the Staad file after a few minutes.
Can you take a look at both these files?