My mom (81) went to visit my sis in India in Oct, 2019. She was supposed to come back in Mar 2020 and we had booked air tickets etc, but due to Covid, flight cancellations and risk factors due to her age, she is still in India. Is there any chance/way USCIS will not make her GC invalid after 1 year? Or should we try to come back before 1 year is over? I'll have to go from US and get her as we do not want her to travel alone.