I made several tests, the crash does not depend on:
- The size of the terrain
- Other AI options
- Scripting

The crash comes only after a "FULL GENERATE"

Removing the 3 files specified in my previous post, you can reopen your level.

Currently I develop my scripts and dialogs on a old level achieved before the last patch, and then I copy the scripts and dialogs in my level currently developing ... waiting for a solution to generate a stable AI surface.

Thanks to resolve this.