Cannot register new secret after fingerprint change on Android

[dwiseryl]

Bug report

Description

After registering a secret with the invalidateOnEnrollment: true option, then enrolling a new fingerprint, any subsequent attempt to register a secret fails with error BIOMETRIC_UNKNOWN_ERROR. This persists until the app is re-installed or all app data is cleared.

Expected result is that, after registering a new fingerprint, loading the existing secret should not be possible (which happens correctly), but registering a new secret should be possible.

Environment

Tested with latest plugin version and Android 26.

[mvaljento]

Any news on this?

[Ahriyal]

I also encountered a similar problem in Android SDK 33. After registering a secret, then deleting part of the fingerprints will lead to any subsequent attempt to register a secret or load a secret fails with error BIOMETRIC_UNKNOWN_ERROR in encryption and decryption.

Can anyone help me in this issue?
It would be a great help. Thanks in advance.