Fingerprint won't open 1password on Xiaomi 15 ultra

Hello, New in this community, but one year user of 1password.

After moving from a OnePlus to a new Xiaomi 15 ultra (global edition ), I can't open 1password with fingerprint . It appears once, but is never recognised , then it fallback to the password . Further attemps will not present the fingerprint options, unless I deselect and reselect it again in settings . It works as it should with the device pin, which is unsecure , and with the main password , which is annoying because it's time consuming .

I'll add that fingerprint is working to unlock the device , and with any other applications accepting fingerprint .

I saw a quite similar discussion in the forum , but it was not related to Xiaomi 15 ultra . I understand that the issue was related to an updated driver.

Thanks for any advice .