The biometrics appointment was today. I found out about the RFE after checking the status of my application online. I am worried about it too. They must know that it  is concurrent filing because of the "current" status on F2A category right? Even if they didn't already know it, it was indicated in the application itself. So why the RFE? I have no idea what to make of this. Probably need professional opinion. @budhobalak, How are you going about this?