Lighting doesn't work properly on large maps

When i’m trying to make maps larger then 5x5 (I think it’s 5x5)
the lightning getting really dark and doesn’t work as it should be.

Hi Liamap,

Can you be more specific? This seems a little vague.

Are you talking about lightmaps for landscape or for static meshes? Also it’s helpful to include screen shots or other relevant information to get a better response.

Thank you!