I'm positive this is not user mistake, since the recovery phrase was present in two unique locations: backed up inside a file on S3, and printed over a bit of paper. Should you be Uncertain about a selected word's spelling, use the lookup purpose (Ctrl+File on Windows/Command+File on Mac) within https://bookmarkstumble.com/story20580215/the-fact-about-valid-bip39-seed-phrase-that-no-one-is-suggesting