Just updated to r196.
OK, at first I was having trouble with "Clone object type". When I tried to clone an object type in my layout, the clone didn't appear (though it still showed up in the project bar), and for some reason my grid view vanished. I started a new project as a tester, created a sprite, cloned it, and everything worked fine, so I decided it must be a problem with my main project.
Then I decided to try creating a new sprite from scratch, and that's when things got funky. The new sprite (a red square) showed up with this pseudo-3D effect - as I dragged it around the layout, it changed dimensions as if it were a flat 3D object. Then, literally just now as I was posting this, everything suddenly just went back to normal. Clone object type works fine.
HELP ME AM I GOING CRAZY