Fails for unauthenticated user

Unpatched 4.6.0 version of IndexPage installed on Drupal 4.6.3

I have checkmarks for 'anonymous user' and 'authenticated user' next to 'access indexpage' in admin/access.

Anony user can see the 'main index page' navmenu item and navigate to /indexpage. However if he attempts to open indexpage for any nodetype he will get

ERROR: That node type doesn't exist, there are no entries, or the index page for this node type is disabled.

However this will work fine for the authenticated user. IE, authenticated user gets the proper list of articles for that nodetype.