Can I get light maps to look like preview?

i am working on a game that is to have a detailed cartoon style look. i build the assets in blender bring them to ue 4.27.2. (ue5 it too much of a performance hit) i’m making modular squares that match up to build the level, which work and look great until i build the lightmaps. once the lightmaps are built each square has a slightly different tint making it obvious its built in squares. if i turn off light maps completely then shadows appear nearly black and it all looks terrible. however, in preview everything looks perfect. is there a way to have everything just as it is in the preview? I would think since the engine can render it in preview then it should be able to display it that way as its final look. maybe i’m missing something obvious like you simpy dont build the lightmaps and it will default to the preview look. but im trying to set up the visual look of the game and want to know that it wont look drastically different later on when i’m nearing completion of the game.