SS-K1

Hi VJ Community,
I am posting this message hoping someone would be able to help me with my questions.
I filed for a I-485 and I-765 concurrently (K-1 Based) back in December 02, 2015 and received a Bio-Metric appointment fairly quickly. I also got my EAD in like 3 months of filing. However, my I-485 application is still with MSC and it looks like it hasn't even been touched by anyone, the status still says "Case was Received". I have heard that the applications that are processed by MSC itself receive a letter stating that they qualify for a "Potential Interview Waiver" but I have not even received that letter nor have my case been transferred to the local office.
Since I got my I-765, I decided to wait patiently, but I am now starting to worry, as most of the December filers have either received their GC or at least a waiver letter.
I would really appreciate if any of you can share their experience and guide me if there is anything I need to do from my end.
Thanks!

Yes these days the embassy is asking people to come in for new finger prints and oath. It is normal and doesn't mean they think your case is fraudulent.
Yes they may have made a typo send the DS-160 if it is the correct form. Ask them if you are approved and see what they say after you take the oath.