Today I had the same experience. I have an unwanted upgrade with the lost of fingerprint.
Fortunately I remember the Master Password but:
This upgrade showed me, that I never can trust a company who makes mistakes with such big consequences and even worse, blames afterwards their customer.
In Switzerland we distinguish between companies who have customers and companies who have victims.
I immediately look for an other key program, has anybody an idea for an alternative program with easy data migration?
Thanks from Switzerland