When putting two walls/boxes next to each other I noticed that the material ( standard white wall material ) looked lighter one one of the walls than it did on the other ones as if that specific box/wall was receiving more light.
Yes i did build the lighting.
Yes i applied the same material on both of them.
Every suggestion is appreciated, thank you in advance
This is actually not a bug, but you will need to make some adjustments to your World Settings, Lightmass Settings to help eliminate the line between the two meshes. Change the Indirect Lighting Quality to 4 and the Indirect Quality Smoothness to 0.75. You can also increase the Lightmap resolution.
I would recommend having a look at our Lighting Troubleshooting Guide, found here: