I recently bought Pixel 4a as a replacement for my Pixel 3a, and after restoring the content from the old phone, I encounter following issue with Enpass.

I'm using biometrics (fingerprint) as a identification method, and now on Pixel 4a, after every fingerprint prompt, I also need to enter Master password. On previous Pixel 3a, the behavior is expected one, with fingerprint check, the Enpass is unlocked without password prompt.

I did manage to notice, that when I enable the Biometrics option in the Settings, and authenticate myself with fingerprint, I'll get the following toast message at the bottom of the screen: "Failed to encrypt the data with the generated key error". Biometrics seems to be enabled then anyway (it's checked in Settings), but when I want to open the Enpass to get the password for any app/webpage, I need to also enter my Master password, as mentioned previously.

As for a troubleshooting steps, I tried Erase everything option from Settings, as well as reinstall Enpass app.

I'm currently using Enpass version 6.6.6.490 on a Pixel 4a with latest Android 11 (June 2021 security patches).

Hey @Srandista

Welcome to the forum!

Please follow these troubleshooting steps and let me know if the problem persists.

1. Open Device settings --> Go to Security & lock screen --> Select Screen lock --> Setup PIN. (In case, if you're using some other function to unlock your device)
2. Now delete all the Bio-metrics/fingerprint from device settings and add a new one.
3. Now Enable Bio-metrics in Enpass.

If this doesn't help, please confirm if a keyfile is added to the vault?

Thanks for your co-operation.

Thanks @Garima Singh, that did the trick!

Enpass warned me, that it disable Biometrics because new fingerprints were enrolled, and after re-enabling Biometrics in Enpass settings, I didn't get any toast error message and unlocking behavior for Enpass is now correct one again.

Thanks once again!