This save crashes frequently, usually within the first unpaused minute after loading. I have multiple versions of this fortress, and most of them seem to have the same problem. Either it crashes soon after loading, or it works fine (and rarely, it goes well for a while and then crashes.) By "crash" I mean the game window just closes.
I'm not sure why it crashes.

I usually try to resolve this by loading, saving after a few seconds and loading again, but that is inconsistant.

The in-game time of the crash is consistant, making me think some event is bugging the game.
I only use Dwarf Therapist. I do rename saves often.

I'm on a Mac, and I do get bug reports and weird things on terminal. They look like this:
objc[1036]: Object 0x17217220 of class __NSArrayM autoreleased with no pool in place - just leaking - break on objc_autoreleaseNoPool() to debug

Any help would be appreciated.