Can't use multiple displays with VR/SteamVR Plugin.

Hello, I'm currently creating a VR project on unity and on this project I need to render the HMD view and the view of a virtual camera (wich is phisically linked to a vive tracker) on two different screen.

I successfully did it with normal cameras following the documentation : https://docs.unity3d.com/Manual/MultiDisplay.html

But I tried the same thing with the steamVR camera rig and a normal camera and every time I try to look at Display2 unity crash and instantly crash with a build of the project.

Here is some screenshots:

Spoiler: SteamVR camera:

Spoiler: Tracked Camera

Spoiler: Script for activate Display2

Spoiler: The result:

When I play the scene:

And when I try to look at Display2 to check the view of my tracke camera:

 

Ok it works now, I just had to put the steamVR camera on Display1 and the normal camera on Display2 I don't know why it's important but it works like that. Hope it'll help someone else.