Sometimes even after entering the VR space, you can still see real hands and arms

Sometimes even after entering the VR space, you can still see real hands and arms。It has been set, but sometimes it doesn't take effect. UpperLimbVisibility (. hidden)
Does anyone know how to solve it.Thank you.

ImmersiveSpace(id: "MetalClient") {
CompositorLayer(configuration: ContentStageConfiguration()) { layerRenderer in
let system = MetalClientSystem(layerRenderer)
system.startRenderLoop()
}
}
.immersionStyle(selection: $clientImmersionStyle, in: .mixed, .full)
.upperLimbVisibility(.hidden)