There are reports that USCIS is issuing a second biometrics appointment notice after receiving a prior notice over the past several weeks and appearing for biometrics capture.  We understand that the American Immigration Lawyers Association has contacted USCIS about the problem and it is due to USCIS’ change in computer programs.  In the meantime, check your records before appearing for any appointment.  Also, do not disregard it.  Instead, ask your lawyer to inform USCIS that the biometrics have already been taken.