Okay, sorry for the double post, but I have found a solution:
1. Delete the Divinity Data Engine 2 folder in the Steam common folder, not in the folder of the original game.
2. Uninstall Divinity Data Engine 2.
3. Disable the patch.
4. Activate the patch.
5. Install Divinity Data Engine 2.
6. When starting the editor, select the path as in the Larian Guides again.
If someone should have the problem, it should be solvable.
It is here I think important to delete the folder of the editor by self, if one knows that there is an extra folder for it.
Last edited by Terberos; 19/10/17 05:01 PM.