Unless that has been changed replacing that texture crashes the game, I tried that months ago. But to be sure I'll give that a shot when I'm back at my computer in a few hours, I don't recall what resolution I imported the texture as, so it was probably 16k instead of 1kYou have to override a texture called "Main_map_physics_heightmap". You should replace that texture with your own heightmap, the resolution of which should be 1024x1024. You can directly use the heightmap exported from the editor using the "Export heightmap" button in Terrain Inspector. Please note that this is a temporary solution while we work on a system that will save the physics heightmap to the terrain file on "Scene save" automatically. It will likely be released within the next few patches.
sorry if this is a little off topic to the op, but is that determined by the main_map_snow_flowmap, or is that hardcoded somewhere else?We ensure that our season selection algorithm does not select the "Winter" season below certain altitudes in the world map. If you place your scene in one of the settlements from the starting "Aserai" area, the game should not load that scene in winter season.