"Hey guys,

So I applied within 120-150 days before expiration on May 31. Expire Oct. 7

I still haven't received my biometrics appointment. So I contacted USCIS and they sent me an email stating my application needed extra reviewing and this is why a appointment hasn't been setup."


Told me the same last week before I got approved few days latter. Thought it was something related to my non-existent criminal record and/or uneventful background.

Previous commentary is likely correct. Generic message.
Fear not and wait!