I noticed that the changes made to the layout Theme Options, say the layout assigned to pages, are not reflected straight away when I visit a page. Only after I edit and update the page I see changes introduced to the layout Theme Options (at least I am testing now Disable Elements settings).
For example, visit the page: hidden link
It's got double title.
Then go to Layouts > Layout for Pages > Disable Elements section and try to enable Content Tile, then save the layout, then disable Content Title again, save the layout, and visit the above url. Double title is still there. Only if you edit this page and save it, one of the titles disappears (the one not included in the layout).