URP XRGraphics.eyeTextureResolutionScale is read only

Hi, just upgraded to URP 7.3.1 in Unity 2019.3.6f1 and started getting an error that XRGraphics.eyeTextureResolutionScale is read only (in UniversalRenderPipeline.cs line 138).

So I changed:
XRGraphics.eyeTextureResolutionScale
To:
XRSettings.eyeTextureResolutionScale = asset.renderScale;

That seems to fix the issue, but just wanted to know if anyone from Unity can confirm this is the correct fix (I am using XR Management, will test a scene, but it's very late here, so will do it tomorrow.).

Anyway, thanks in advance.

Edit: I also noticed something annoying. Every time I restart unity it undoes my changes so I have to change the code again... Hope they post an official bug fix quick.

 

I'm also interested by the correct way to use render scale in VR.

 

Yes, I upgraded URP to 7.3.1 and started getting the error. I thought maybe it wasn't compatible with my unity version, I was using a 2019.3.5f something version, so I updated to the latest my Unity hub showed 6f1, but the error persisted, which is why I decided to inspect the script myself.

Full error:
Library\PackageCache\com.unity.render-pipelines.universal@7.3.1\Runtime\UniversalRenderPipeline.cs(138,13): error CS0200: Property or indexer 'XRGraphics.eyeTextureResolutionScale' cannot be assigned to -- it is read only

 

I already upgraded the project to 2020.1 beta and URP 8.01, but I will try to setup a repro project in 2019.3 later if I can. I'm not sure, but I get the feeling the error only started showing after I installed some other packages.

 

It seems URP's RenderScale overrides XRGraphics.eyeTextureResolutionScale. When I change XRGraphics.eyeTextureResolutionScale in low resolution on Quest, it lowers the resolution but it instantly backs to the default.
Can any of Unity engineers confirm it? @ThomasZeng