I downloaded the standalone alpha 4.02 yesterday (I'm on OSX 10.8.3) and I haven't been able to either load (even the built in levels) or save levels in the game. The level list is empty everywhere it pops up. And when I try to save a level, nothing happens at all.
Is this a known issue?
Also, where should I report these kinds of issues?
If you redownload the alpha again, the levels will work :)
The levels folder was accidentally put in the wrong location for the OSX build. It's a bit tricky to find issues like that, as we don't have a Mac to test it on!
You still have the link I hope?