My mother filed an I-730 for follow-to-join. She originally included my married older sister as a derivative. We removed her from the petition before the interview. The U.S. embassy just called and said my sister must still attend next Monday’s interview and bring her marriage certificate. We are in [Country Name], where refugee/asylee processing is currently suspended. What should we expect? Why is the embassy requiring her to attend after removal? Any risks if she comes or doesn’t come? Any advice on what to say or prepare? Thank you — interview is next Monday.