Hi there. I have a problem that you might be able to help with. Problem 1 Indirect light bleeding in from the outside wall through the edge of the inner wall. Problem 2 A diagonal seam. I tried using -Directional with Specular: full shading -Directional But the problem still persist. Usefull to know. The mesh is air-tight no gaps, no holes. I used default Unity second UV lightmap generator with a pack margin of 12. Hard angle is default 88. Advice would be deeply appreciated. Thanks.