I have recently started using Local Authentication (LA) and it all works nicely on devices that support biometric authentication (touch id):
To allow the LA falling back to passcode when user fails the first fingerprint scan I just pass the LAPolicy.DeviceOwnerAuthentication policy. But when I do the same for older devices with no touch id (or face id) support, LA instead falls back to some generic password UI. is there a way to force LA to immediately prompt the Passcode UI instead?