Lightmass screwed as much as it can be....

Well for static meshes it’s fine it will build but for landscape 95 % it will fail or 5 % maybe it will take forever, It just won’t start for me…

Try splitting the landscape into separate levels and then build the levels one at a time. That may help.

I can try… But why ? It used to be fast as bullet : ( .

https://www.youtube.com/watch?v=PDfs…ature=youtu.be why this shadows at distance ? THey are not there in the editor.