Ya. When I try that it displays "Unknown error" and I cannot enter the password or do anything else.
If I try to use my phone code instead of my thumbprint it ends up the same result as the thumbprint - password not saved.
UPDATE:
I've been banging on the keyboard (channeling my inner Dire Straits) and after saving and deleting a blank password, I was able to save my VIPS password. No idea the whys or wherefores but it's working again.
Thanks for the assistance.