Serious Unreal Studio (Datasmith) export problem from Autodesk Revit. Wrong UV configuration

Hi fellows,
I have a serious problem with datasmith export from Revit.
I try to post some screenshot: UV problem with Skylight and LightSource set to movable.
I’m using ultra dynamic sky plugin.

As you can see the curtain wall is completely badly illuminated after building lights (which are exported from revit lamp class, as spot point lights, are perfectly posed outside walls and 3d meshes.

Wall settings: static light, lightmap set to 256, Import UV 512-1024 from datasmith.
I tried also to set wall lightmap to 512 without benefit…

Lightmap UV Path is perfectly configured from channel 02, and has not any conflict…
Hope someone can help me.