Human form not unlocking
It used to be unlocked by absorbing Beatrice's blood, but the gloomrot patch appear to have changed that to Bane the Shadowblade according to the in-game V Blood menu.
However, I have killed and absorbed Bane the Shadowblade twice without unlocking Human form.
I have also tried logging out and in again.
This is on a rented G-portal server running the Gloomrot patch.