Same mesh and material but different color

Hi whats going on with this door. its all fine before i built the lighting (bottom color) and then suddenly all my doors on the third level turned lighter (there are 3 floors in the bldg that im making) please help :frowning: heres a picture

Have you tried editing/moving/removing any of the lighting ? It might be worth trying to see if it makes any difference be it useful or not.

ue is still updating to 10.4. but ill try that and update this. my lights are 1 directional light and 1 skylight. i also have an atmospheric fog in there.

i think i understand now. i believe the culprit is the lightmap. so if i increase the light map the light and shadow distribution is much better and more accurate. thank you for your help! answerhub makes us wiser. cheers!