Just posted a book that was WL'ed and had an immediate request via auto request. There were no Rc's showing..after printing, I looked at the title again and saw there was a box on the left that said show RC...when I clicked on it, it said RC was only for hardcover and the book I posted was a mass market paperback. Is this a new feature that will only show RC's that pertain to the binding type ordered or was this a weird glitch? That's never happened before, so I am curious!

Sounds like a glitch.  The RC system does not read RC content and decide if a book fits (such binding).  It is up to the sender to read the RC and determine if their book meets criteria.

You are able to hide your RC for individual books aren't you? If they hid it for a paperback book would it show up like that?