Membership Update Broke Visitor Access Level

When I upgraded to the latest version, all visitors get a white page. When I disable Membership, the site comes back. I've got debug set to "true" but am not seeing any error messages.

So I cloned the old "Visitor" access level and disabled the old level. Site now works with the plug-in enabled. However visitors can see all blocked pages and categories. I tried re-creating the negative rules, but still doesn't have an effect.