No idea where the proper place for a bug report is, so I'll do it here.
As you can see, I've got 2 cursors hanging about, and the big droid thing sticks around too. (Also, seems like my gfx card doesn't support your shaders, so the game is a little weird, without the shadows. (It's hard to actually "know" what's visible to you and what's not))
The bug first appeared after the update today.
And of course the obligatory system specs:
Mac Book Pro, primo 2011
Mac OS X 10.8.3
2,3 GHz Intel Core i5
8 GB 1333 MHz DDR3
Intel HD Graphics 3000 512 MB
java version "1.7.0_11"
Java(TM) SE Runtime Environment (build 1.7.0_11-b21)
Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode)