visionOS 26.5, xcode26.5 - app terminated with exit code 9 then crashed and rebooted the entire device (Apple Vision Pro). I was connected to the Xcode debugger when this happened, and it didn't crash in any of our code. Memory and CPU usage was low at the time. Any idea what could be causing the issue? Some logs: << FigVideoTargetRemoteXPC >> signalled err=-15562 at <>:868 ... Call start on AVKSDockingService before making requests. <<<< FigPlayerInterstitial >>>> signalled err= 18,446,744,073,709,535,945 at <>: 10,773 <<<< FigPlayerInterstitial >>>> signalled err= 18,446,744,073,709,535,945 at <>: 10,773 << FigVideoTargetRemoteXPC >> signalled err=-15562 at <>:868 <<<< PlayerRemoteXPC >>>> signalled err= 18,446,744,073,709,538,756 at <>: 1,538 SessionCore_NotificationHandlers.mm : 73 Server returned an error:. Error Domain=NSOSStatusErrorDomain Code=-50 "Session lookup failed" UserInfo={NSLocalizedDescription=Session lookup failed} <<<< PlayerRemoteXPC >>>> signalled err= 18,446,744,073,709,538,756 at <>: 1,538 ... nw_read_request_report [C 1 ] Receive failed with error " No message available on STREAM " nw_protocol_socket_reset_linger [C1:2] setsockopt SO_LINGER failed 22 Debug session ended with code 9: Terminated due to signal 9 Program ended with exit code: 9 Thanks, bvsdev

According to documentation, the URLSession background tasks continue even when the app is suspended. What is the lifespan of the URLSessionDownloadDelegate object when app is suspended or terminated? Will it get re-created and re-initialize properties when the app re-launches, or will it somehow restore the existing property values? Also, urlSessionDidFinishEvents not getting called, and what do we need to do there with the backgroundCompletionHandler? Any insights are much appreciated. We are getting ready to launch and this is a roadblock. (visionOS26.4) Thank you. @Observable class DownloadManager: NSObject, URLSessionDownloadDelegate { ... let config = URLSessionConfiguration.background(withIdentifier: "TestDL") config.sessionSendsLaunchEvents = true var urlSession = URLSession(configuration: config, delegate: self, delegateQueue: nil) func downloadFiles(... { // initiate multiple file downloads concurrently for url in urlList { let task = urlSession.downloadTask(with: url) task.resume() } } func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) { ... func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didWriteData bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) { ... func urlSession(_: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) { ... // Not getting called ?? // Is this only called when app is suspended/terminated? func urlSessionDidFinishEvents(forBackgroundURLSession session: URLSession) { print("didFinishEvents") Task { @MainActor in //urlSession?.finishTasksAndInvalidate() //urlSession = nil // not sure what to do here: if let appDelegate = UIApplication.shared.delegate as? AppDelegate, let completionHandler = appDelegate.backgroundCompletionHandler { completionHandler() appDelegate.backgroundCompletionHandler = nil } } }

I've tried following apple's documentation to apply a video material on a Model Entity, but I have encountered a compile error while attempting to specify the Spatial Audio type. It is a 360 video on a Sphere which plays just fine, but the audio is too quiet compared to the volume I get when I preview the video on Xcode. So I tried tried to configure audio playback mode on the material but it gives me a compile error: "audioInputMode' is unavailable in visionOS audioInputMode' has been explicitly marked unavailable here RealityFoundation.VideoPlaybackController.audioInputMode)" https://developer.apple.com/documentation/realitykit/videomaterial/ Code: let player = AVPlayer(url: url) // Instantiate and configure the video material. let material = VideoMaterial(avPlayer: player) // Configure audio playback mode. material.controller.audioInputMode = .spatial // this line won’t compile. VisionOS 2.4, Xcode 16.4, also tried Xcode 26 beta 2. The videos are HEVC MPEG-4 codecs. Is there any other way to do this, or is there a workaround available? Thank you.

Hello, I'm trying to build a compound object using 2 cubes. I adjusted the z value for one object to make them appear merged together. However, when I run the simulation the two objects separate. Is there something I need to set to make sure the z value doesn't change when it's running? Thanks, BVSdev composed objects, grouped together running: