We're having some strange issue with our app and/or Testflight since a few days ago: our app runs fine on simulator and devices (iOS 12, iOS 14 & iOS 15) when run from Xcode, but it crashed at launch when we archive and distribute it via Testflight for iOS 14 and below, but NOT for iOS 15 (we haven't tried to actually release to the AppStore). The app was working perfectly fine on iOS 12+ until then, on Testflight or otherwise. No crash log is ever generated by these crashes (either on Crashlytics, or Organizer, or even in the device crash logs), and what's more mysterious is that when re-archiving past versions of the code that had no issues 3 weeks ago and are live on the app store, we are now getting the crashes. We've dug into the device logs to try and get some more info, and we could find com.apple.stability.crash {"appVersion":"3.3.1","bundleID":"com.cobble.ios","exceptionCodes":"0x0000000000000000, 0x0000000000000000","incidentID":"B47DF725-343B-4D8E-A1C4-8F52EB5766C1","logwritten":1,"process":"Cobble Production","terminationReasonExceptionCode":"0x1","terminationReasonNamespace":"DYLD"} for iOS 14, and Process exited: <FBApplicationProcess: 0x10a2dd110; Cobble Producti (com.cobble.ios); pid: -1> -> <FBApplicationProcessExitContext: 0x28331a100; exitReason: (none); terminationReason: (none)> { stateAtExit = <FBProcessState: 0x283cd8cc0; pid: 4156; taskState: Not Running; visibility: Unknown>; } for iOS 12. We haven't had any luck so far figuring out what the issue(s) can be, but we've tried a lot of things from building on different computers, playing around in the build settings, updating our pods, to fully uninstalling/reinstalling Xcode and the project from Github.. It might be worth noting that we're using automatic signing from Xcode (changing that is our next test) Any help would be greatly appreciated!! We've also posted this question on StackOverflow (https://stackoverflow.com/questions/70316323/ios-app-crashes-at-launch-on-testflight-for-ios-14-and-below-but-not-ios-15)