Hello, we need to allow background downloading of assets from the network and into our visionOS app. For that purpose, we would like to implement Background Assets framework since the Apple web page of the framework indicates that it is supported on visionOS. Unfortunately, Xcode 15.1 beta 3 does not allow us to add the Background Download extension. How can we use Background Assets framework in our visionOS app? Is there another way to create the background download extension? Thanks,

In a visionOS's App file I run into the compile time error Extra argument in call for a 10th ImmersiveSpace declaration. Commenting this declaration and leaving the 9 others, removes this error. Why does this behaviour occur? I haven't come across any limitations regarding the permitted number of ImmersiveSpace declarations in the App file. The only limit I recall is that ONLY 1 immersive space may be loaded by the app an any given time during runtime. The issue is easily reproducible in latest Xcode 15.1 beta 2 : create a new visionOS app with: initial scene of Window, Immersive Space Renderer RealityKit, and Immersive Space Mized in App file, under body, copy paste the ImmersiveSpace block 10 times, renaming the id's ImmersiveSpace1 through to ImmersiveSpace10 respectively. The error will occur on the 10th declaration.