Dedicated server build from command line fails

Hi, I did a full clean-and-build via deleting all build and intermediate directories but now when I build a dedicated server the .exe is only 2mb vs previously it was 120megs. I am running the same build script/ build system - which continues to work on another machine. Why does the command line to build a server work on one and not the other? (.ini files seem to also be the same)