LUD Changed for I-485 but I have applied for N-400

havefun

Registered Users (C)
I have I-485 and N-400 in my USCIS Staus Check portfolio. Today, I have received e-mail from USCIS saying that my file for I-485 has changed. I checked the portfolio and found out that LUD has changed but only for I-485 with a date of 07/08/2006 but LUD has NOT changed for N-400.

This is confusing to me. When I have applied for N-400 then why LUD has changed for I-485? Has anyone else seen this before? Does it mean that my file for I-485 is being requested from Central Storage System? ( or whatever it is called?). Does it mean that once I-485 is received by NSC they *might* schedule my interview?

Please share your experience. My timeline is below.

Thanks.
 
Not sure what LUD means?

When you submit N-400, USCIS tries to gets hold of all your previous immigration paperwork filed by A#. Sometimes missing files and multiple A#'s slow down the processing. Maybe that what happening here?
 
LUD for N-400 too changed today. It says your case status cannot be found in this system.

Hopefully IV Letter is in the mail.

Waiting eagerly.
 
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