1. What happened

I get an error when calling LightProbes.GetInterpolatedProbe. Here is the error:
NullReferenceException

UnityEngine.LightProbes.GetInterpolatedProbe (Vector3 position, UnityEngine.Renderer renderer, UnityEngine.Rendering.SphericalHarmonicsL2& probe) (at C:/buildslave/unity/build/artifacts/generated/common/runtime/GraphicsBindings.gen.cs:2089)

2. How we can reproduce it using the example you attached

You just need to load Assets/TestScene.unity3d and press play in the Editor. It gets the error in the Editor and on a device.

This issue is a regression as it does NOT occur here:

Version 5.3.1f1 (cc9cbbcc37b4)
Thu, 17 Dec 2015 13:01:19 GMT
Branch: 5.3/release

Occurs on:

Version 5.4.0f1 (c6df7519ab13)
Mon, 11 Jul 2016 22:27:03 GMT
Branch: 5.4/staging

as well as the google daydream preview release:

5.4.0b24 (18776a17bc62)