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How do you turn off "Rebuilding Navigation" every time I move something.

This is eating away at my productivity. Every time I move anything even by accident UE freezes while it rebuilds navigation. I don’t have any need navigation to be rebuilt until I build the level. I’m considering just removing navigation all together until the last step of building my level. How do you turn this option off?

Can anyone help me here?

Anyone? This is mighty annoying

Take all of you nav volumes and place them in a sub level. You can then off load them using level stream and when ready load them back in.

Editor Preferences > Uncheck “Update Navigation Automatically”