Still having issues, so going back to clean version of the branch before my changes, and verify that I can launch OXCE+ for starters. All I did was build OXCE+ with might small set of changes, put UFO in the build/bin/UFO directory and ran it with no command line options from the /build/bin directory.
--- posts merged. wow, 2 posts in 2 minutes, srsly man? ---
I did a from-scratch unmodified build of the oxce3.5-plus-proto branch of OXCE+. Same problem. Won't launch with xcom1 ruleset error. Not sure what on earth is going on now.
Do I need to try this in Windows?