Loading USDZ at runtime from web url results in black texture

Context

https://developer.apple.com/forums/thread/751036

I found some sample code that does the process I described in my other post for ModelEntity here: https://www.youtube.com/watch?v=TqZ72kVle8A&ab_channel=ZackZack

At runtime I'm loading:

1. Immersive scene in a RealityView from Reality Compose Pro with the robot model baked into the file (not remote - asset in project)
2. A Model3D view that pulls in the robot model from the web url
3. A RemoteObjectView (RealityView) which downloads the model to temp, creates a ModelEntity, and adds it to the content of the RealityView

Method 1 above is fine, but Methods 2 + 3 load the model with a pure black texture for some reason.

Ideal state is Methods 2 + 3 look like the Method 1 result (see screenshot).

Am I doing something wrong? e.g. I shouldn't use multiple Reality Views at once?

Screenshot

Code

struct ImmersiveView: View {
    var body: some View {
        RealityView { content in
            // Add the initial RealityKit content
            if let immersiveContentEntity = try? await Entity(named: "Immersive", in: realityKitContentBundle) {
                content.add(immersiveContentEntity)

                // Add an ImageBasedLight for the immersive content
                guard let resource = try? await EnvironmentResource(named: "ImageBasedLight") else { return }
                let iblComponent = ImageBasedLightComponent(source: .single(resource), intensityExponent: 0.25)
                immersiveContentEntity.components.set(iblComponent)
                immersiveContentEntity.components.set(ImageBasedLightReceiverComponent(imageBasedLight: immersiveContentEntity))

                // Put skybox here.  See example in World project available at
                // https://developer.apple.com/
            }
        }
        
        Model3D(url: URL(string: "https://developer.apple.com/augmented-reality/quick-look/models/vintagerobot2k/robot_walk_idle.usdz")!)
        
        SkyboxView()
        
//        RemoteObjectView(remoteURL: "https://developer.apple.com/augmented-reality/quick-look/models/retrotv/tv_retro.usdz")
        RemoteObjectView(remoteURL: "https://developer.apple.com/augmented-reality/quick-look/models/vintagerobot2k/robot_walk_idle.usdz")
    }
}