Hello, we implemented Apple Sign-In in our website long ago, and it worked well.
Recently we have found a strange behaviour.
The first time we make the request to the /auth/token endpoint we get an invalid_client error.
Our client id is com.spicysparks.service.id
If we make a request another time with exactly the same data it works fine.
We noticed we get this error only when we try a newly generated client secret for the first time.