Hello, I have a couple of navmesh questions relevant to your tutorial. First, I'm stuck with not proceeding in exterior navmesh. I started the exterior navmesh, but as soon as I saved, the work I did disappeared. I shut down ck and started back up. The problem continued. There was no vanilla navmesh underneath in this particular area. I've not navmashed exterior before so I'm assuming I'm ignorant about some aspect of this.
The second question is that your tutorial states to try hard not to delete vanilla navmesh. However, I have a very large house, and there is a lot of navmesh underneath it. What can I do about that? I've checked out a few other large house mods, and the navmeshes there seemed to have been deleted. I can't see trying to pull theses away from the house (house is just too big).
Thanks so much !