It's been a few days now, the Fingerprint sensor is a bit of a problem, its more temperamental than my wife,
The sensor seems to go to sleep and not wake up after sitting for a while,
i see on Gitlab there are a number of tickets on this issue, Fingerprint worked great until the last update 03-14.
Creating fp works fine,
initial tests work fine
Once the phone shuts down for a period over 5 mins or so fp's are no longer recognised and a pin is required.
deleting fp requires a restart.
FP1 often seems unable to be deleted without restarting and deleting again.
its very inconsistant.