Unable to unlock with Apple Watch

Update: Now Apple Watch Ultra unlocking is back, working normally.
What I did: in 1Password settings I unflagged the option to unlock with Apple Watch, then I blocked the App (Shift + Cmd + L).
Then I unblocked the App using the password as required by the App itself, and put again the flag to unlock with Apple Watch.
I blocked again the App and then I normally clicked on the App icon.
The App splashscreen appeared and ... bum! the Apple Watch asked to unlock 1Password.
Hope this help.