Mystara shrine crash bug

I'm playing the Northern Desert dungeon and my game crashes whenever I step on the shrine of Mystara in the subdungeon.

I've tried a few times, this is repeatable (I'm running firefox or safari on Mac OS 10.7 with unity 3.5.0f6).
Love the game, though!

I've tried a few times, this is repeatable (I'm running firefox or safari on Mac OS 10.7 with unity 3.5.0f6).
Love the game, though!