Hi, I joined to this thread today and posted my timeline. I sent out my I-130 on October 27 and received the first notification on Novemver 3.
and I checked my case status today on USCIS website, and as everybody who filed late October 2016 wrote their files has been transferred to somewhere, I also saw the same message. It said my case was transferred to a new service center on March 23, 2017 and I'm waiting for a hard copy of it by mail. (I think I saw someone said hard copy mail arrived in a week from a date the file has been transferred.)
This is getting a little frustrating since the process has been slowed down since December 31. It took a month for them to process 5 days of filers.
(As of December 31, 2016, they were working on August 2, 2016 file and as of January 31, 2017, they worked on August 9, 2017.)
I can't think of any other excuse than D. Trump.