It seems to me as if the project this rendering was created in has a very large element in it.
With its current approach to lighting, Enscape will analyze the scene size dynamically (what is visible in the Revit view currently selected for Enscape) and adjust the shadow detail to the project size.
Is it possible that, for example the floor, stretches across a very wide area? If that's the case, could you please resize or hide it and see whether the light leaks vanish?
