First, rename or delete the following files in SceneObj folder, these are the bugged files and you won't need them.
scn_random_scene_plain_forest.sco (906 KB)
scn_random_scene_snow_forest.sco (906 KB)
scn_random_scene_steppe_forest.sco (906 KB)
Now create a copy of the following files:
scn_random_scene_plain.sco (1 KB)
scn_random_scene_snow.sco (1 KB)
scn_random_scene_steppe.sco (1 KB)
Now rename them as the first three above by adding _forest before the .sco extension. Ultimately, you should have the following files in that directory:
scn_random_scene_plain.sco (1 KB) (Original)
scn_random_scene_snow.sco (1 KB) (Original)
scn_random_scene_steppe.sco (1 KB) (Original)
scn_random_scene_plain_forest.sco (1 KB) (Copy)
scn_random_scene_snow_forest.sco (1 KB) (Copy)
scn_random_scene_steppe_forest.sco (1 KB) (Copy)
What we need is to get rid of those 906 KB files and use copies of 1 KB ones instead of them.
Hope this clears up the thing a bit more.