Why don't metal object not receive shadows?

I'm migrating from offline to real time and have a job where I have metal objects which are not receiving shadows. The same object with non metallic materials DO receive shadows, and if the material is .5 metal it has half shadows.

I have a custom HDRI environment and spot lights casting shadow. All are baked, with good results on non metal items.

I've attached a simplified example scene to demonstrate.

Also if anybody can tell me why SSR won't work, even though all other post does I'd be grateful. Camera IS set to deferred rendering.