The following firestore rules set works in my emulator,
but does not work in the Cloud.
The isUserAuthenticated returns false, as if the {userId} didn’t evaluate correctly.

rules_version = '2';
service cloud.firestore {
 match /databases/{database}/documents {

function isUserAuthenticated(request) {
  return request.auth != null;
}

function isUsersOwnAccount(request, userId) {
  return request.auth.uid == userId;
}

function isUerAuthenticatedAndIsUsersOwnAccount(request, userId) {
  return isUserAuthenticated(request) && isUsersOwnAccount(request, userId);
}

function isUser(request) {
  return request.auth.token.rank == 'user';
}

//* USER'S ACCOUNT
match /users/{userId} {
  allow read, write: if isUerAuthenticatedAndIsUsersOwnAccount(request, userId)
  && isUser(request);
}

//* USER'S CLIENTS
match /users/{userId}/clients/{clientId} {
  allow read, write: if isUerAuthenticatedAndIsUsersOwnAccount(request, userId)
  && isUser(request);
}

Is there anything else I should have set in the Firebase Console maybe?