I apologize for not reading through this entire post, but I just solved this issue for my newest ROM built earlier today. The problem was in the registry entry relating to the 2016 SMS issue:
[HKLM\Software\OEM\SMS] "RecvTimeDateStamp" dword:X0000001
I deleted this entry and it seemed to correct the problem. I am not sure if this will work for you guys, or if you have the registry entry in your rom, but any help is better than no help. If the problem persists and your on Sprint, you can always give my ROM a go:
http://forum.ppcgeeks.com/showthread.php?t=109784