Microsoft Authenticator autofill stopped working

(This text was translated from Japanese to English using ChatGPT.)

I was using Microsoft Authenticator for password autofill on my personal iPhone.

At some point, it stopped functioning properly.

Previously (when it was working normally):

I would select the password input box on an app or webpage where the password was saved.

The saved information in Authenticator would be suggested above the keyboard at the bottom of the screen.

Tapping on the suggestion would launch Authenticator, and after biometric authentication (Face ID), the saved password would be autofilled.

Currently (in the abnormal state):

I select the password input box on an app or webpage where the password is saved.

The saved information in Authenticator is suggested above the keyboard at the bottom of the screen.

Tapping on the suggestion launches Authenticator, but only displays a screen saying, 'Setup is complete. Sign in with your Microsoft account to sync saved passwords across devices and autofill on sites and apps. Open Authenticator,' and the autofill does not function.

Self-confirmed details:

• iOS is 17.5.1 (latest).
• Authenticator version is 6.8.11 (latest).
• Authenticator is signed in and authenticated.
• Saved passwords remain in Authenticator.
• Authenticator is selected in iOS password options.
• iCloud Keychain is turned off in password options.
• Authenticator settings show 'Authenticator is set as your autofill provider.'
• The issue occurs on both Safari and Edge browsers.

Possible cause:

I am using Authenticator with a different organizational account on my work iPhone, which recently underwent a device change. During the MFA setup transfer process for the organization’s account, I followed steps to display 'My Account,' show 'Security Info,' and delete registered sign-in methods. One of the deleted sign-in methods included my personal iPhone number.

I am not sure if this device change for the organizational account is related or how it could be, but it coincides with the timing when autofill stopped working on my personal iPhone.

That's all for my inquiry.

Additionally, I have not yet attempted recovery from an Authenticator backup to avoid potential errors since I have no prior experience with it.