Baking Lights Issue

Hi, I’ve got a spotlight and a directional light in a simple scene . I’ve put a default material on the geometry and baked the lights . The Spotlight have 5000 power because lower power didn’t gave me any light on the geometry .

After Baking the light I get this Issue . Anyone know what’s wrong ?

It looks like a texture for heavily worn glass. Any other details about the scene that can be captured in a screenshot?

Lightmass settings in World Settings
Lightmass settings in the directional light
Packed Texture Size (in World Settings)