"new request" "delete request" "perform find" and "cancel find" are all "find options" and they are all visible in the screen shot. What options are missing?
those are fine, what's missing is the toolbar under the status bar containing include/omit option and operators dropdown.
Go it. I'm not aware of any bug reports that would indicate such a bug (But I only have access to my own system created from public reports made here in the forum: https://www.dropbox.com/s/jt09b82i0xijbu3/FMP%20Bugs.zip )
FileMaker Inc. techs may know details that I don't.
I'd check to see if other FileMaker files on the client's computer show the same thing and also check other layouts to see if the problem is specific to a particular file or a particular layout. It's possible that their file is damaged in some way.