I have seen this when quitting the app but in this case: I can run a few small runs where the views are light but once i get to a certain point and stop the recording Instruments hangs forever in Transferring data. Also what is the "Panic Stop" button? I can't find any documentation on it

Steps: In Xcode, choose Product → Profile Use the standard SwiftUI App template Keep the template settings at their defaults Start a profiling session If I stop the session while the app is still on the home screen, everything usually completes normally Start another profiling session and interact with the app a bit more Observed behavior: Occasionally, after running a longer session, I see a message related to ktrace Even after this appears, I can still sometimes run another short profiling session successfully In other cases, I see a different message indicating that data could not be collected I have also seen a message indicating that no SwiftUI data was available (I don’t currently have a screenshot for this case)

I have screenshots but the forum sensitive filter is flagging them