What build is needed for the application to work in Test Flight?

Question

iOS

The application in the test flight crashes on the splash screen, although everything is ok on the simulator. There is a feeling that somewhere debug build is instead of realise, but it seems to have changed everywhere where I knew)
Can you tell me where to look in xcode?

Answer 1

it is better to solve the problem with the crash, open the tab in xcode: Windows -> Devices and see the crash logs