GPG Keychain Access keys have all dissappeared

I just got the invite earlier today. I set up my account, choosing to keep my Secret local and installed Node.js and Keybase to use in Terminal (Mac OS X; bash). I've now (several hours later) opened GPG Keychain Access and my keyring is empty :( Only action I've done today relating to PGP keys is the Keybase utility.

I've invited a friend ".../jenniferkollman" who has also installed node.js and keybase. I just asked her to open her GPG Keychain Access and hers have disappeared as well.

The report concerns an empty GPG Keychain Access keyring after installing and using Keybase with Node.js on Mac OS X, but names no repository files or tests. Start by checking whether the disappearance can be reproduced from the reported setup; done means identifying the responsible component and documenting a verified fix or clear reproduction result.

Written by the indexing model from the issue text.