Problems with Lightmass - splotchy (waves) shadows 4.24

Hey all!

I have some issues with Lightmass. Does anyone know it’s a bug or feature? :slight_smile:

Standard game template without anything.
Standard Objects from Unreal.
After baked, I got this miracle.

Production Quality.

Direct Light = Stationary
All Objects = Static

Another condition

Direct Light = Static
All Objects = Static

Why Interpolation in lightmap not applying?