Keep getting this NumSceneInstancesPo2 <= (1 << 24) Nanitecullraster crash, the problem is caused by having too many grass instances on my map (its a 4x4km map), the grass itself is not nanite enabled, it just happens when the editor tries to load a large amount of grass.
Hopefully this will be fixed soon or some type of decent workaround suggested because it’s a major drawback. Using foliage obviously isn’t a solution because adding millions of grass will consume all memory, obliterate performance and balloon your map size to multiple gigs.