I'm confident it's not user error, Considering that the recovery phrase was found in two unique locations: backed up in a very file on S3, and printed on a bit of paper. Standard recovery phrases use a particular list of 2048 words subsequent the BIP39 standard (Bitcoin Advancement Proposal 39). https://madesocials.com/story4366886/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase