The function "show x deleted comments" from the mod menu on posts is broken on some SE2.0 beta sites. In particular, it is returning an OOPS on Christianity.SE but not Hermeneutics.SE.
Oops! Something Bad Happened!
We apologize for any inconvenience, but an unexpected error occurred while you were browsing our site.
It’s not you, it’s us. This is our fault.
This happens on all posts I've tried on both the main and meta sites.