Filed i601 back in June and accepted by the Nevada office on June 20th however the status still shows Initial review. When I look at the Nevada processing times its showing July 3 as of November 30th. It clearly passes our date if June 20th. Why is this taking so long? Also, to our surprise the US Embassy in Colombia called us to schedule an interview to update some expired documentation (ex:DS-260, medical records, police records, etc...) however my lawyer advise us not to do it until we get the waiver approval. Is he right? Should I wait or update the documents as requested by the embassy?