The symptom is specific: a false claim keeps returning in revised drafts. Start with the affected item and identify the decision or input that could produce this behavior.
Find the likely cause
The underlying source packet still contains the error.
Treat this as an explanation to verify against the actual work. Look at the input, the relevant decision, and the final result together. If the evidence does not support this diagnosis, investigate the mismatch before applying a convenient but unrelated fix.
Make the targeted correction
Correct the authoritative input and remove contaminated examples.
When generated content contains a false claim, the repair should address both the affected material and the process that allowed it through.
Check that the repair worked
Generate a fresh sample and check that the claim does not reappear.
Repeat the check on the final version that the reader or customer will encounter. An approved draft, a preview, and a published result can differ; the acceptance decision should concern the version people actually use.
Prevent the next related failure
A separate issue to watch for is this: only the original article is corrected. Inventory derivative emails, posts, and downloads.
Monitor the useful outcome
Track recurrence of the same error type and the completeness of affected-asset corrections.
Keep a short record of the original symptom, the evidence behind the diagnosis, and the result of the acceptance check. That record makes the solution reusable when the same condition appears again, without assuming that every superficially similar problem has the same cause.