Membership Plugin - Stranger access level isn't working correctly

I installed the Membership plugin so I could build a small community site based on BuddyPress.

The problem I'm running into is setting up the Stranger access levels correctly. If I set it to anything other than "None - no access to content", I can't hide any of the BuddyPress functions (Activity, Members...). I currently have it set so that the "Public" level I created hides everything (I put it all in the "Negative Rules" area), but even with that, I still see the BP stuff.

It seems like I've tried everything here and had no luck. Any help?