The most recent versions of Role Scoper (1.0.0-rc9.9227) and More Fields (1.2.8) don't like to play with each other under WordPress 2.7.1.
To me/on first sight it appears more like a problem on the side of More Fields, but that plugin works fine with Role Scoper switched off.
Problem: Assume we have a custom post type of type post created with MF and labeled "Agenda". If I try to "Add a new" Agenda entry I get referred to the WP/generic "Add new" Post menu/template. A little bit as if I was not allowed to add an Agenda entry (I'm working as an WP-Admin, though).
As MF also has an option per (custom) post type of "minimum access rights required" I could imagine a conflict there, when both plugins try to control the access.
That's why I post it here. Maybe someone else is experiencing similiar problems? MF is a very nice plugin, after all.