Can't save a levels nav mesh if using world composition?

Terricon4
Wed, 18 Oct 2017 02:20:44 +0000
World Creation

I’ve recently run into a fairly serious issue. I’ve been trying to figure out how to use world composition to better make a larger world with some parts that can be only loaded in as needed, but I’ve hit a bit of snag.

Every time I try to save a level after having built its navigation mesh, it fails to save. It will show the saving progress bar and all like usual for the level but then once it disappears the level still has the little asterisk on it showing it hasn’t saved, and if opened it wont have any nav mesh.

While testing with different stuff I found out that some levels would save, but then instantly clear their nav mesh and have to rebuild it. This happened with smaller nav meshes, while the larger ones would just seemingly fail to save but not disappear from the cached level I was looking at.
I’ve been looking around a bunch but haven’t found anyone actually mentioning this (though it does seem nav mesh issues with world comp are somewhat common) so I figured I’d mention it here so it can be looked at by somone who may know more than me, or possibly even solved should I just be missing something that isn’t covered in the documentation (nav documentation is overall lacking, and seems completely missing when it comes to its use in world comp levels).

I looked around and tried various things like making the nav mesh in the persistant level or such, but nothing I’ve done has worked.

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