Objects not moving in tutorial app (on Quest)

Hello, Oculus dev noob here. I implemented the app from the "Build Your First App" tutorial, and I'm trying to convert it to actually running on my Quest.

All I did was convert the Camera to an OVRCameraRig and change the Player Controller script to the following:

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

using Oculus.Platform;
using Oculus.Platform.Models;

public class PlayerController : SocialPlatformManager
{

    // Appears in the Inspector view from where you can set the speed
    public float speed = 500;

    // Rigidbody variable to hold the player ball's rigidbody instance
    private Rigidbody rb;

    // Secondary camera to debug and view the whole scene from above
    public Camera spyCamera;

    // The OVRCameraRig for the main player so we can disable it
    private GameObject cameraRig;

    private bool showUI = true;

    public override void Awake()
    {
        base.Awake();
        cameraRig = localPlayerHead.gameObject;
    }

    // Use this for initialization
    public override void Start()
    {
        base.Start();
        spyCamera.enabled = false;

        // Assigns the player ball's rigidbody instance to the variable
        rb = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    public override void Update()
    {
        base.Update();
        OVRInput.Update();

        Vector2 x_y = OVRInput.Get(OVRInput.Axis2D.PrimaryThumbstick);
        float moveHorizontal = 0.5f; //x_y.x; // 100.0f; //
        float moveVertical = 0.5f; //x_y.y; // 100.0f; //
        //float moveHorizontal = Input.GetAxis("Horizontal");
        //float moveVertical = Input.GetAxis("Vertical");

        // Vector3 variable, movement, holds 3D positions of the player ball in form of X, Y, and Z axes in the space.
        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);

        // Adds force to the player ball to move around.
        rb.AddForce(movement * speed * Time.deltaTime);
    }

    void ToggleCamera()
    {
        spyCamera.enabled = !spyCamera.enabled;
        localAvatar.ShowThirdPerson = !localAvatar.ShowThirdPerson;
        cameraRig.SetActive(!cameraRig.activeSelf);
    }

    void ToggleUI()
    {
        showUI = !showUI;
        helpPanel.SetActive(showUI);
        localAvatar.ShowLeftController(showUI);
    }
}

When I build and run the app on my Quest, I see the ball and box, but the controller inputs don't make anything move, and nothing moves even if I hardcode moveHorizontal and moveVertical (as above). Is there any other step I need to take to get updating to work?

Thanks!