I am certain this is not person error, Because the recovery phrase was located in two different places: backed up in a very file on S3, and printed on the piece of paper. Standard recovery phrases use a selected list of 2048 words subsequent the BIP39 standard (Bitcoin Advancement Proposal https://agendabookmarks.com/story19532378/the-ultimate-guide-to-bip39-seed-phrase-mnemonics-generator