So I tried the new version, still no luck, not even with send/get. But I found the following: It seems the cube (or object) doesn’t make the trip back from unfold3d. The Uv map I get in blender is just the one you get when you add a cube and add an uv map. When I “send”, do the unwrap, THEN SAVE in unfold3d, then “get”, it works.
I am not logged in as admin, maybe it’s some kind of permissions / paths problem.