Sorry about that, this is an annoying old bug that's haunting me since v0.02.
You can try opening the Phone Menu with the keyboard (press X) and then try to go to the Gallery, this works for some people that have this bug.
I'm know the reason for it, but unfortunately I can't remove it, since the plugin that causes the problem is needed to play the animated scenes.
And yes! Vaulty is pretty much based on Vault-Girl, although she pretty much works by herself, I may add some things about Vault-Tec on her backstory!