Same issue here. I had a working storekit configuration file in my project, synced from appstoreconnect. I added an introductory offer to it, then tried to sync it in xcode. Everything disappeared in my file, and now i'm unable to get it to work.

I found a temporary workaround: I rolled back the file to its previous state using git, then modified it manually. I created a second StoreKit file to check the format needed to add my introductory offer. It's not perfect, but it seems to work.

Same issue on iOS 18.4 when I'm trying to export a composition. The issue only occurs on a simulator, it works well on my device. No issue if I comment the line setting the videoComposition to my expoter. let composition: AVMutableComposition = .init() ... let videoComposition: AVMutableVideoComposition = .init() ... let exporter = AVAssetExportSession( asset: composition, presetName: AVAssetExportPresetHighestQuality ) // The issue comes from the AVVideoComposition set here exporter.videoComposition = videoComposition