Auth not working in Unity editor

[GoShikhar]

Facing a weird auth issue in Unity editor whereby auth isn't working all of a sudden.
The sign-in and token refresh was working in this project but out of nowhere it isn't anymore in Unity editor. We haven't updated Unity editor, we have updated to the latest firebase sdk now, still no luck.
Although, it's working as expected in the built android apk.

Unity editor: 2023.2.18f1
Firebase Sdk: 12

These methods give errors which aren't much detailed.
SignInWithEmailAndPasswordAsync, user.TokenAsync()

Exception: An internal error has occurred.
StackTrace:   at Firebase.Auth.FirebaseAuth.SignInWithEmailAndPasswordAsync (System.String email, System.String password) [0x00038] in /home/runner/work/firebase-unity-sdk/firebase-unity-sdk/linux_unity/auth/swig/Firebase.Auth_fixed.cs:3555 
UnityEngine.Debug:LogError (object)
FirebaseManager:<SignInEmail>b__97_0 (System.Threading.Tasks.Task`1<Firebase.Auth.AuthResult>) 

Can anyone please help here?

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[argzdev]

Thanks for reaching out, @GoShikhar. I'm wondering if there's an issue with our Firebase Auth version 12.0.0. Could you try and use version 11.9.0 as a mitigation? At the same time, any chance you could provide a minimal reproducible example of this issue? I'm currently trying to test this with our Unity Quickstart for Auth, however it doesn't seem like there's an issue with the email/password login.

[GoShikhar]

@argzdev Our project was on 11.8.1 and auth was working perfectly for a few months, and yesterday out of the blue, auth stopped working in the editor.
We double checked a lot of things and then finally we decided to upgrade the Firebase SDK itself to 12.0.
So, it stopped working on 11.8.1. Then we upgraded the sdk to 12.0 and it still isn't working in editor.
When we build the apk for android, auth is working perfectly fine.

This is a prod project and we have been using firebase auth since 2021 in this project. Never had this weird issue of auth not working in editor.

@argzdev given the above info, would you still want us to switch to 11.9.0 and test it out? Let me know.

[GoShikhar]

@argzdev I used
Firebase.FirebaseApp.LogLevel = Firebase.LogLevel.Debug;

and I'm getting this in logs:

Failed to read user data for app (__FIRAPP_DEFAULT). This could happen if the current user doesn't have access to the keystore, the keystore has been corrupted or the app intentionally deleted the stored data.

[GoShikhar]

@argzdev This seems to be similar to firebase/firebase-cpp-sdk#10 issue. Any help here?

[GoShikhar]

Found the issue.
2 days ago, we enabled Google Maps Api platform for our project on GCP.
While doing so it asked us to protect the api access by setting the apk bundle name and sha-1.
We entered the details and what it did was that it restricted access to the apis only to the built android app and did not allow editor.

[argzdev]

Sorry for the delayed response, @GoShikhar. I'm glad you were able to resolve your issue, thank you for sharing the solution of your problem. I'm sure it'll help other folks who encounter the same issue.