How to Make Light Probe Group Appear?

I have been trying to place Light Probe Groups into my scene, but nothing is appearing. I have tried creating the Probes straight from the drop down GameObject tab as well adding the Light Probe Group to an existing GameObject as a component. No matter the approach, no Probes or wireframe appear. It is just completely blank, as if nothing was added.

I am using Unity 5.6 Pro Edition, have my 3D Gizmos turned on all the way, and have created new scenes and projects to see if the Light Probe Groups would work. Still, despite these numerous attempts, the Light Probe Group is still blank; it is just an empty transform. I am including an image as a reference of what is occurring. Does anyone know of a way to fix this?