Crashlytics/Fabric crash reporting solution worked flawlessly for years, but after upgrade to Xcode 9 or iOS 11 I don't see crash reports from my debug builds anymore. I attached Crashlytics.sharedInstance().crash() to a button, running the app with cable unplugged as I did dozens of times before, app crashes but I don't see crash reports on the website. What could be the case?
Unplugging a cable from the device used to be a sure way to detach an app from the debugger. But with the introduction of wireless debugging in Xcode 9 it's no longer the case. You have to disable network debugging by opening Devices screen (Shift+Cmd+2) and unchecking Connect via network to really detach your device from the debugger.