DualShock 4 - won't work on mac build

So, I've got a regular PS4 controller - Dual Shock 4. I'm connecting it via USB, MacOS recognises it in System Report > USB section as a "Wireless Controller" manufactured by Sony.

I've turned off Logitech gaming software (for my mouse, as suggested in related topic).

I don't have any other input connected to the box as I'm testing this.

I've added two Axes in InputManager:

 Horizontal
 gravity: 1000
 dead: 0.001
 sensitivity: 1000
 type: Joystick Axis
 axis: X axis
 joy num: Joystick 1
 
 Vertical
 gravity: 1000
 dead: 0.001
 sensitivity: 1000
 type: Joystick Axis
 axis: Y axis
 joy num: Joystick 1

Code for controls (nothing fancy, taken from the official tutorial):

 using UnityEngine;
 using System.Collections;
 
 public class PlayerController : MonoBehaviour {
 
     public float speed;
 
     private Rigidbody rb;
 
     void Start() {
         rb = GetComponent<Rigidbody>();
     }
 
     void FixedUpdate() {
         float moveHorizontal = Input.GetAxis("Horizontal");
         float moveVertical = Input.GetAxis("Vertical");
         Debug.Log(Input.GetJoystickNames());
         Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
 
         rb.AddForce(movement * speed);
     }
 } 

Input.GetJoystickNames() returns empty string, however... The controller works fine in "Play mode".

The problem occurs when I'm trying to use it to play mac build (webgl too, haven't tested others):

• Input manager won't register any input from the joystick, so I can't set it up

• There's no reaction in the game to my input This leads me to believe that the game build doesn't recognise the pad at all.

I've verified the controller is working in several ways:

• by using Controllers Lite app - it's highlighting the correct buttons

• by playing games with it on my mac

• by using it in the play mode in Unity Editor

• and by playing games on PS4

I'm running:

• Latest MacOs: 10.12.5

• Latest Unity: 5.6.2f1

Please advise. I'm at the end of my tether.