I’ve been experiencing the same issue. It even occurs in a packaged project.
I’ve even encountered a strange behavior where every time you open a level, incorrect textures are loaded. I can then spam reload the level, and a different texture loads for the same mesh half the time Lol.
The packaged project: QuickNaniteTest
Use button 1 to reload the level.
I’ll try uploading the project file, it’s nothing special, just a bunch of quixel asset thrown together with nanite enabled. But the file size is huge…
EDIT:
Project file for those who want to look into it: NaniteBench