expo: [expo-apple-authentication] AppleAuthenticationButton not showing up

🐛 Bug Report

Environment

Bare react-native app. iOS simulator with iOS 13.

Steps to Reproduce

I’m trying to insert the AppleAuthenticationButton using the exact same code provided in the documentation:

import * as AppleAuthentication from "expo-apple-authentication";
...
  <AppleAuthentication.AppleAuthenticationButton
    buttonType={
      AppleAuthentication.AppleAuthenticationButtonType.CONTINUE
    }
    buttonStyle={
      AppleAuthentication.AppleAuthenticationButtonStyle.BLACK
    }
    cornerRadius={5}
    onPress={async () => {
      try {
        const credential = await AppleAuthentication.signInAsync({
          requestedScopes: [
            AppleAuthentication.AppleAuthenticationScope.FULL_NAME,
            AppleAuthentication.AppleAuthenticationScope.EMAIL
          ]
        });
        console.warn(credential);
        // signed in
      } catch (e) {
        console.warn(e);
      }
    }}
  />

Actual Behavior

Nothing is showing up. Worth things to note:

• If I remove the props buttonType / buttonStyle it throws an error. So the component is being executed.
• The AppleAuthentication.isAvailableAsync() method returns true.
• If I call AppleAuthentication.signInAsync() using a custom button the Sign In flow works perfectly.