For those stressing over the fact that their case status is not showing up online, we've told you before there is nothing unusual about that. The fact that you've received the Bio notice is enough prove that your case is progressing accordingly, of course this is not to say that the case of those who haven't received Bio notice isn't progressing accordingly either. USCIS is not quite diligent with updating the case status page until after the interview stage.
My case status didn't show up online until after doing my Biometrics, and when it did it simply showed up at the Acceptance stage where it stayed until after my interview. Immediately following my interview, it jumped to "Post Decision Activity", the next day it went back to "Decision", a day later it was showing up as "Post Decision Activity" and the following day it moved on to "Card/Document Production". So again, I say stop stressing about the Case Status for now, your cases are most likely moving on accordingly, whatever delay you're facing at this stage probably has to do with your FO.
Just make sure you sign up for "Case Status Updates" from the "My Case Status" link once you have your receipt number. You will get updates whenever your case gets updated and you wouldn't even have to be checking that website every couple of hours to find out if there's an update or not.