I'm absolutely sure this is not person error, since the recovery phrase was located in two diverse spots: backed up inside of a file on S3, and printed over a bit of paper. Standard recovery phrases use a certain list of 2048 words pursuing the BIP39 standard (Bitcoin Advancement Proposal https://yourbookmarklist.com/story18970937/examine-this-report-on-bip39-mnemonic-phrase-tool