@DTS Engineer thank you for the explanation What about Catalyst apps? I suppose they should follow the iOS-style app groups, can you confirm?

I resolved it by removing the app group capability from the appid at developer.apple.com, transferring the app, and then grouping it back again.

@hyouuu I wonder if you had found a workaround for this issue?

We have an app that is published both on iOS and macOS (Catalyst). The iOS app is sharing group containers between app extension and main app target, but it's not sandboxed. The macOS Catalyst app is sandboxed but the group containers were removed a week ago with the latest AppStore submission. We are facing the same issue and still seeing this error message "You can only transfer sandboxed apps that are not sharing a group container." when transferring the app. Can anyone from Apple give a bit more details what can we do to fix that?

Disabling Siri end enabling it back again in macos settings helped me. Looks like the iOS simulator (that is used to render the preview) was making a lot of XPC requests to Siri. I opened the Console.app and noticed that the coreaudiod has spammed with a lot of messages. So switching the Siri back and forth made SwiftUI preview immediately finish rendering

I've got the same Console infinite spam from SpringBoard: default 12:42:48.635344-0500 SpringBoard [0x1363526c0] invalidated on xpc_connection_cancel() default 12:42:48.635365-0500 SpringBoard [0x1363526c0] activating connection: mach=false listener=false peer=true name=com.apple.systemstatus.peer.0x1363526c0 Switching the simulator to "Prefer Integrated GPU" fixed that. My machine is MBP 14" M2 16GB