I have a Samsung Galaxy S2 (Sprint, codename d710), and I just installed the latest CM nightly (10.2). Everything worked until I encrypted the device. Now the radio doesn't work (network: UNKNOWN, no service, etc.). I looked at each of the mobile network settings and didn't find anything; I also tried about 10 different modem updates (packaged as .zip, installed through Clockwork Mod).
I verified that it happens immediately after an encrypt from a fresh install of CM nightly 10.1-2013-11-17.
Is there anything to do short of wiping and reinstalling? What's the source of the problem, and how can I prevent it from happening again?