VisionOS: translucent view show blurred passthrough background instead of immersive background

Hi

We have an issue where the blurred background shown behind the Views is incorrect.

We are using the compositor layer to render a fully immersive scene using Metal, so there is no real world passthrough. We have a couple of SwiftUI Views in the scene that have translucency and the glassBackground effect enabled. We expected that the background would show the blurred immersive scene, in the same way it shows the blurred real world in passthrough mode. Instead, it seems to still show the blurred real world, which feels strange from the user perspective.

This is only visible on-device, in the simulator the background is always black.

Thanks

Mark