Hi Guys,
Just an update that we have fixed this issue in the recent beta release and soon we will roll out stable version hopefully by the end of this month.
Cheers!
OK fixed - disabling it in Enpass alone and re-enabling again did the trick. I didn't have to do anything with Windows Hello in my System Settings (actually didn't want to, since I've used the Improve Recognition feature a few times and didn't want to lose all that it learned.)
Thanks for the help.