Modders assemble, 1.3 is out!

[Daemian]

Can you verify that you are using the new Amnesia 1.3 release. Because this error sounds like you try to use the new tools with the old Amnesia release or vice versa. You need to use the 1.3 tools with Amnesia 1.3. If you are, where is the game from and how did you update it?

Jens, yes I don't have the update, just the tools.
I thought it was only the tools you updated! My bad, I just found it: Amnesia TDD 1.3 update

I have my retail version installed, and some copies of it to do tests.
Also two steam versions, mine and my brother's, which I don't use.