I have followed through with this documentation: https://firebase.google.com/docs/app-check/flutter/default-providers inclusive of iOS+(App Attest) and Android (Play Integrity). Upon signing in, I receive the cloud firestore “PERMISSION DENIED” error, a problem that I did not face prior to App Check.

I set up a complete new project and am facing the same issue. Am I missing anything?

P.S. I have added in the debug and release SHA1 and SHA256 in Firebase and App Check as well