Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods Terrain Uneditable (Larian please!)

OK so, just to make this clear (in case someone else has the same problem and comes here looking for the solution) I made a typo in my most recent post, as Baardvark said.
I clearly stated my Data Paths, which are correct and did not change. That was not the problem.
From the first time I was asked to supply them:
EditorDataPath: C:\Program Files (x86)\Steam\SteamApps\common\Divinity - Original Sin\Data\Editor\
GameDataPath: C:\Program Files (x86)\Steam\SteamApps\common\Divinity - Original Sin\Data\

Even with these data paths being correct, the application was not saving the files it needed to the mods folder in the editor path.
It may be that part of the setup procedure should include manually making a mods folder there... I don't know, but in the event someone has that problem, doing so after the problem occurs won't fix it.
If your terrain becomes uneditable, 2 of us have gotten positive results from copying some of the contents of:
C:\Program Files (x86)\Steam\SteamApps\common\Divinity - Original Sin\Data\Mods\<yourmodname>
To a new folder called Mods that we created in:
C:\Program Files (x86)\Steam\SteamApps\common\Divinity - Original Sin\Data\Editor\Mods\<yourmodname>

Specifically, I copied over the Levels folder, which contains AI and terrain files for all the levels in my mod.

As I said, if that Mods folder does not exist, just create one. Same thing with the folder inside it for your mod... Just make sure you cut and paste the name, since you don't want to get the UID wrong.

It appears, contrary to repeated assumptions, that you can have your data paths set correctly and still, in some cases, run into this problem. If so, try this.