I have exactly the same problem, and would appreciate some guidance on whether hang diagnostics on macOS actually work. The same as the original poster above, the Simulate MetricKit Payload debug option works fine, and a crash is delivered immediately on restarting the app. No sign of any real hang reports though, even after deliberately causing hangs in the app. It’s my understanding that they should be delivered immediately, but even after waiting several days there’s still nothing. I’ve tried debug, release, and TestFlight builds. Any guidance as to what I could possibly be missing would be great! Thank you.