Anyone got GeneratedNavLinksProxy to work in a build? (Automatic Navigation Link Generation)

I’m testing the new Automatic Navigation Link Generation and it’s all good in the editor, but in the build the event (ReceiveSmartLinkReached) in the GeneratedNavLinksProxy is not called.
Just wondering if anyone has it working in a build (if it’s probably a problem with my project or not).

(I’m using blueprints exclusively)