World Machine to UE4 export with world composition - all Z are large negative values

Using “island chain” sample provided with WM 2.2, export to tiled landscape and import to UE4 with World Composition turned on. Doesnt matter what I set the height to, all terrain load with a Z value basis around -25000. This breaks lighting and procedural landscape.

Can anyone give correct settings to export from WM when using world composition?

Same thing happens with single landscape, however it is possible to move that. With World composition it does not appear to be possible to move those tiles in the Z direction. In any event that is not the preferred workflow because there may be many (>1k) tiles.