On a freshly erased/reset simulator, I am first prompted to sign in via "Settings" - and that succeeds - but upon returning to the app, after entering my Apple ID and Password, I see an error message reporting a failed login. This occurs on my own app as well as the sample "Juice" app.
Code Block 2020-08-09 19:03:09.402574-0400 Juice[97346:888874] [core] Authorization failed: Error Domain=AKAuthenticationError Code=-7034 "(null)" UserInfo={AKClientBundleID=com.example.apple-samplecode.juiceGP########}