@fragfest2012 - Thanks for replying. Gave me another boost to get in there and try fixing this.
I ended up going over every setting of the (big) box and I ended op changing the “Ligthmap Resolution” to 1024 (was at 64) in the Static Mesh Settings dialog resulting in image in attach
That said - when an object does not bounce/display/take light from a Directional Light - is the usual cause this Lightmap Resolution ? I would have expected it to show at least something from the Sunlight when the value is set too low.
In my experience, the few times I’ve had weird lighting effects (which is not often) it’s been either other geometry in the way (one sided meshes/materials can really trick you ) and a few times it’s been the lightmap resolution. I almost always work with full dynamic light while I’m building my scenes, that way it’s really easy and fast to see if things are working properly, and if your fixes work. Then switch to baked light when I’m almost finished.
Well, I would still try to put the box outside just for the sake of seeing if that works with the old lightmap resolution. But I’m glad you fixed it. Try smaller values like 128 and 256 and see if those work as well; 1024 is very large for a box.
) and a few times it’s been the lightmap resolution. I almost always work with full dynamic light while I’m building my scenes, that way it’s really easy and fast to see if things are working properly, and if your fixes work. Then switch to baked light when I’m almost finished.