The "Show In Finder" action isn't working on Mac OS X Mountain Lion. The problem has just started to occur all the time, before it was a bit sporadic, but now it happens all the time.

Things that don't work:

* In the chrome Downloads page clicking any of the "Show in Finder" links.
* Right clicking a file in XCode and choosing "Show in Finder"

Things that work:

* `open .` in terminal
* `command-n` after command tabbing to Finder.

Things I've tried to fix the issue:

* `Opt - Right Click` finder in the dock and relauching
* Restarting my computer

Anybody ever experienced this issue?