Here is what happened to me. Filed 485 in Dec'2004, FP in Apr'05, then LUD indicated that they got FP results and started to process my application.
Then in Jul, I moved, so called and changed address. My hu*****and received a letter saying address has been updated, a few days later, I received a mail saying that address is updated, and my case will be delayed because they are performing security check.
Why/how could this happen? anyone have similar experience? thanks!