Streaming ZED cam video on separate eyes of HTC Vive

I am trying to use the two cameras on my ZED Cam to stream separately from either camera on to the respective eye on a HTC Vive set. So I've set up 2 cameras- one for left eye and one for right eye with the SteamVR Camera script && then configuring each cam to render on separate eyes and separate displays.

I attached a script to each camera which creates a WebCamTexture & allows me display it on a RawImage UI component in Unity:

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using UnityEngine.UI;
6.  
7. public class CameraRender : MonoBehaviour {
8.  
9.     private WebCamTexture wt1;
10.  
11.  
12.     private bool camAvailable;
13.     private Texture defaultBackground;
14.  
15.     public RawImage background1;
16.     //public RawImage background2;
17.  
18.    public AspectRatioFitter fit;
19.    // Use this for initialization
20.  
21.    void Start () {
22.  
23.         WebCamDevice[] devices= WebCamTexture.devices;
24.  
25.         if (devices.Length>0)   {
26.             wt1= new WebCamTexture(devices[0].name);
27.             //wt2= new WebCamTexture(devices[0].name);
28.         }
29.  
30.         if (wt1 ==null) {
31.             return;
32.         }
33.  
34.         wt1.Play();
35.         background1.texture= wt1;
36.         camAvailable= true;
37.  
38.        //wt2.Play();
39.        //background2.texture= wt2;
40.        //camAvailable= true;
41.  
42.     }
43.  
44.     // Update is called once per frame
45.    void Update () {
46.  
47.         if (! camAvailable)
48.              return;
49.  
50.        float ratio= (float)wt1.width/(float)wt1.height;
51.        fit.aspectRatio=ratio;  
52.     }
53. }

So it seems to be working on only one side at all times, the other side is completely black: https://imgur.com/a/OpCvO47

And either side actually works as it seems to work on one side when I remove the WebcamTexture script from the other. So I am thinking that there's some kind of problem with my script.

Weirdly, I tried the same thing on my dad's Macbook & it worked fine with both sides streaming & I managed to crop out the required side of the image. But when I try do it on the Linux machine, it doesn't work. I am using the exact same code except 1 is used in wt1= new WebCamTexture(devices[0].name); instead of 0 since the macbook has a built in webcam.

I've tried redoing what I did on my mac using the Linux countless times but have failed. I have to do my entire project using the Linux machine so I cannot simply just use the macbook for this. So if anyone can offer any suggestions, I would be most grateful.

here is how it should look (done on the Mac):
https://imgur.com/a/yPJFMyv