I am confident this is not user mistake, Because the recovery phrase was present in two various sites: backed up within a file on S3, and printed on the piece of paper. Standard recovery phrases use a particular list of 2048 words next the BIP39 standard (Bitcoin Enhancement Proposal 39). https://bookmarkforest.com/story18963763/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-seed-phrase-mnemonics-generator