[Plugin: Import from Ning] Could not create group forum

When I get the Groups page it says:

Import from Ning is now importing your Ning groups.

It is able to create the groups, but not the group forums:

1) Created group: WKID
Could not create group forum for WKID

Am I missing a step?

Thank you,
Robert

http://wordpress.org/extend/plugins/import-from-ning/