How can I get user-defined sounds to spatialize along their animation paths?

Question

Wwise Setup (2017.1.2)

I have a random container object containing 3 sound object children; the random container loops through the 3 assets with a 2 second delay between each sound. The random container's positioning is set to 3D, logarithmic attenuation curve, position source is user-defined with the "Follow Listener Orientation" checkbox not checked. "Enable Spatialization" is checked. The paths that I have defined all rotate around at least part of the origin over the course of 7 seconds, which is also the approximate length of the 3 children sound objects. Play Type is set to Random; Play Mode is set to Step with "Pick new path when sound starts" checked. An example of a ridiculous path I drew can be seen here (made exaggerated for testing purposes): 

The 3 children all inherit their positioning from the random container. There are no effects in the signal chain and no mixer plug-ins. I created a Play event for the parent random container and assigned to appropriate banks. I am routing these test events directly to the Master Audio Bus for testing purposes. 

Unity Setup (5.6.3p1)

I have a game object that has a rigidbody component and a custom script component. While not being a parent of the main camera, the game object's transform position is the same as the Main Camera. The custom script reads as follows:
 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class AudioAmbManager : MonoBehaviour {

    //public variables
    public AK.Wwise.Bank TestBank = null;
    public AK.Wwise.Event TestEvent = null;

    public void Awake() {
        TestBank.Load();
    }

    // Use this for initialization
    void Start () {
        TestEvent.Post(this.gameObject);
    }
}

 

In the Unity's Inspector, I'm assigning my test bank and test event to the public TestBank and TestEvent variables. 

 

Result

The sound plays as if the positioning is set to Game-defined, none of the paths are heard. The object does not change position at all. The user-defined paths are essentially being ignored. 

 

Haaaaalp!

I would love to know what else I ought to do to get these sounds to spatialize along their assigned animation paths. Am I doing something wrong? I feel like I'm following the documentation pretty much to a T. I'm on Windows 10, Intel Core i7 @ 3.5 GHz and 32 GB of RAM.