We are currently investigating higher than normal crashes since the 1.7.3b hotfix.
We will update you as soon as we have more information.
Update (Sept 1 @ 5pm PT): We are still investigating, no updates for you yet!
Update (Sept 2 @ 1pm PT): We've rolled out a fix for this issue and are monitoring the data. Please let us know if you're still having issues. See you in Ramsgate, Slayers!