WordPress Membership Plugin: Member-level category restrictions broke after cloning member level pro


I have a single installation of WordPress 3.0.4, along with BuddyPress and WordPress Membership plugin.

I had a working installation of WordPress membership until I cloned a membership level and deleted the old membership level. I only had negative rules on this membership level to restrict access to certain pages, categories and BuddyPress groups. After cloning, I applied the new membership to my members.

Now category-level restrictions do not work. On the blog, where previously I would only see posts in categories I have access to according to my level, I can see all posts without restriction. Page level restrictions work, BuddyPress group level restrictions work.

Any new membership levels do not enforce category level restrictions. Deleting all levels and creating new levels doesn't work either.

I'd appreciate clues on how to fix this!