Terrain stuff are brighter after opening different scene

Hi all,

Please help

We are producing a game and we discovered problem with brightness of terrain stuff (trees, grass, etc.). We have bunch of scenes in our game and after the launch when e.g.first scene (map) is opened everything is fine but when we close that scene and go to e.g.second scene (map), in second scene terrain stuff(grass, trees) are more brighter than it should be. It's the same vice versa, when we open second scene as first when game is...

Terrain stuff are brighter after opening different scene