I'm having the same problem. the 1.9 version is a beta version right now according to the file name so its probably a bug that hasnt been worked out yet.
Is there a way to add downloadable schematics to the builder block list? ive found a bunch from mcEdit, but I'd rather place them in the game, without having to use mcedit. I find its alot easier to follow along with my town layouts. Plus, i really enjoy watching a team of builders doing the hard work for me.