Aperture 2.1.4 crash when rating pictures since SL update

Question

I seem to be having an issue with Aperture since performing the SL update. This issue seems to occur only when I'm rating pictures. Specifically, it always appears to crash when I'm either rejecting or deleting an image from the library. The crash seems to occur about 1 in 10 or 20 reject/delete operations. It's always the same thread that crashes - thread 23 (I have a large number of crash reports to prove it). I have only noticed this issue since upgrading to Snow Leopard. I've tried removing my plugins, which did not seem to fix the issue. Anyone have any experience with this problem?
Here's a snippet from the top of the most recent log:
Process: Aperture \[343]
Path: /Applications/Aperture.app/Contents/MacOS/Aperture
Identifier: com.apple.Aperture
Version: 2.1.4 (2.1.4)
Build Info: Aperture-908252102~1
Code Type: X86 (Native)
Parent Process: launchd \[92]
Date/Time: 2009-10-29 12:46:22.040 -0400
OS Version: Mac OS X 10.6.1 (10B504)
Report Version: 6
Exception Type: EXCBADACCESS (SIGBUS)
Exception Codes: KERNPROTECTIONFAILURE at 0x0000000000000004
Crashed Thread: 23
Message was edited by: beezhive

Answer 1

It seems to be at random. I haven't tested the same image repeatedly, but at the minimum it happens on multiple imports of images taken over multiple days.