I tried to get world origin shifting working today. It kind of worked a little in editor, but crashed in a packaged build.
World Origin Shifting is kind of pointless anyway in my server system since the whole point of my system is to split up your world into smaller maps.
We did have some good news though. With a small engine modification we were able to use World Composition to bring up a 20km by 20km system in multiplayer and then use my new Zone portals to split it up across servers. I will share more information when the testing is complete.