How come NIW RFE after EAD and AP updated?

My situation:
All pending cases are transfered from VSC to NSC in May.

NIW: RD 9/30/2005, RFE 8/11/2006
EB-1b: RD9/31/2005, AD 4/??/2006 kept in VSC
485: RD 9/30/2005
EAD: RD 9/30/2005, AD 12/??/2005, LUD 8/7/2006
AP: RD 9/30/2005, AD 12/??/2005, LUD 8/7/2006
request foe interfiling 485 with approved EB-1b: 7/??/2006

My wife and I both got LUD on the approved EAD and AP several days ago. I expected news(either good or bad) from 485 or NSC received my interfiling request. I don't see any connections between NIW RFE and LUD on the approved EAD and AP.