I have the same problem but not with the Fingerprint, my Oppo is asking me for the FaceID. I cant even change the settings to use fingerprint.
Authenticator prompts for fingerprint but does not allow me to enter fingerprint
Robert Wagland
21
Reputation points
Microsoft Authenticator asks me to confirm using my fingerprint, this used to work but now doesn't.
I click confirm and it asks again
After three times doing this it locks the app and advises me to restart my phone.
I restarted and tried again.
Issue persisted.
I restarted again.
Issue persisted.
I uninstalled and re-installed the app.
Issue persisted.
I changed my password.
Issue persisted.
I restarted again.
Issue persisted.
Oppo
Android 12
ColorOS12