Quote - I've just merged two scenes in fine. Both saved as full scenes. Second scene had some hair settings that had been altered and they were preserved..

Oi! That must mean it's something in my configuration.. I use the latest version of DS and the very latest of Reality..

Reggie, could you run one more test? Can you open a scene and then merge the same scene? Now do all duplicate items have their Reality settings preserved?

And if you choose "Show hidden items" do you have one or more items that are called Reality_Scene_Data?

No rush, do it if you feel like it :)