Directory and user roles

I installed the Directory plugin on my multisite installation, and then activated it on the main site, and edited the settings.

Now I can't assign any user roles other than Directory Member Paid, and Directory Member Not Paid. I can't assign admin, editor, etc. roles.

Deactivated the plugin and deleted it. The Directory roles remain, and I still can't assign admin, or any other roles.

How do I clean up this mess?