[Brian]

Please do me a favor and email the support ninjas from the Send Feedback menu item - if it's possible to send us your database, that would be very helpful, but even if not, we can work with you to figure out what's going on here.

Rolling back a couple of Sneaky Peeks will keep you up and running for the time being, but if you're encountering this crash, other folks likely will upon release. We'll want to fix it before 1.8 goes final. Thanks!