In my scene I deleted all invisible boxes faces, attached visible ones and welded point, so it is no overlapping with the walls too. I tried with very little chamfer (1cm), it look even worse.
Below, 2048 lightmap resolution for all objects.
In my scene I deleted all invisible boxes faces, attached visible ones and welded point, so it is no overlapping with the walls too. I tried with very little chamfer (1cm), it look even worse.
Below, 2048 lightmap resolution for all objects.