seq007: 2 CRC-valid candidate readings, content NOT settled
  cand1: load C000 blocks-remaining 08 -> seq007_cand1.bin
  cand2: load C000 blocks-remaining 08 -> seq007_cand2.bin
  candidates differ at byte(s): [92, 658]
  -> real block, but these bytes are unresolved; each candidate satisfies the frame CRC.
