Clicking on ST2 2.0.2 in OS X 10.11.6 sometimes results in the window not gaining focus. It pops in front of other windows, but does not gain keyboard focus and maintains its background appearance. This happens intermittently, but I see it happen several times each day on two different machines.
Needless to say, this is very annoying, as I click and start typing but my keystrokes end up in whatever application I was just using.