User Profile

Hello.We have implemented Sign In with Apple on our website. But the problem is that it only works with our developer's Apple ID.I tried to use my personal Apple ID from the same environment, and the sign in process also did run fine.However, when real users are trying to use this feature, Apple returns the wrong response:{ "state": "20cadefd", "code": "c0f4d18d62a124c9482dec72e9b647f6d.0.nwus.L-JUin6NT_fZPDn4B8oYaA", "user" => "{}" }As you can see, the user object is empty.Querying https://appleid.apple.com/auth/token gives back no email claim as well. It is also reported that users do not see the usual step where one can share or hide his real email.What are we missing here?