I'm having the same problem.

I can create a level, make a terrain, add the terrain brushes and then sculpt/paint up the terrain perfectly fine.
Add objects and everything else fine too.

[b]Until...[/b]

Once i exit out of the editor and go back in and load up my module/level, editing the current terrain is impossible.
The layers/terrain paint (to the right of the selected terrain) can't be interacted with.
The green + button at the bottom is greyed out and can't be used.

I get this debug error too, when i selected the terrain and click the load button above it, if it helps at all:
[spoiler]21-09-2014 06:38:15:304: Error - This path seems to contain the mediapath already, but was created using a ROOT. This shouldnt be.
Path: D:/SteamLibrary/SteamApps/common/Divinity - Original Sin/Data/Mods/Terrain_Bug_Testing_cae71483-e9bf-4f96-9ffb-1213df819482/Levels/Test 1/Terrains/ - ..\..\..\..\..\..\LSFramework\Code\CoreLib\Path.cpp - ls::Path::Analyse - 392[/spoiler]

Selecting one of the broken terrain levels and hitting delete brings up an error box saying [color:#FF6600]"The object is locked by source control!"[/color]

It's possible to add a new terrain and edit that one, but it is underneath the previous one, and as soon as you save and exit, it become broken too.

Last edited by teranosouras; 23/09/14 05:59 AM.