The fundamentals import had been failing for three days on two tracked filings the index listed but Company Facts appeared not to have. They were not lagging: SEC filed the XBRL of NEE's and DOW's 2026-07-24 combined parent/subsidiary 10-Qs under the co-registrant's CIK (Florida Power & Light, Dow Chemical), so the ticker-carrying filer's own facts file never receives that accession. This does not self-correct - an NEE filing misattributed the same way in 2014 is still misfiled. Because source_max_date advances only on a promoted run, the failure was self-perpetuating: every later run re-walked the same index day and re-hit the same two filings. - Recover from the co-registrant file. The daily index lists every co-registrant of an accession, which is the only pointer to where the facts actually landed. Rows are re-stamped to the real filer, since parse_snapshots stamps the CIK of the payload it read. - Guard the recovery with a share-count continuity check against the issuer's own history, so a subsidiary's standalone facts can never be stored as the parent's. No history, no recovery. - Bound the blocking: a filing still unresolvable after MISSING_XBRL_RETRY_DAYS promotes with a named unresolved_filing warning instead of wedging every later import. - Name the offending filings in the alert and record them in validation_json, separating not_in_companyfacts from not_in_submissions. The gate previously reported a count and discarded the accessions. Verified against live SEC data: both filings recover with the correct CIK and the guard rejects a mismatched reference. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>