[Plugin: Janrain Engage – Register, Login and Share with Facebook, Twitter, Google, Yahoo! and OpenI

I am having an issue with the WordPress plugin since upgrading to
1.0.0.

With the previous version, I had no issues logging in with a Facebook
account. Now, with 1.0.0 I get the following error:

The username field is empty.
Unable to sign on as *FacebookUserName*.

My user name on the WP blog is different than my Facebook user name
(commented out above). This wasn’t a problem before, but now it is.
When I tried to create a new account with this auth, I still get the
same issue.

I posted this on the RPX support forum as well, but wanted to share here.