Supporting posts have no route back to the overview. The useful response is a targeted correction with an observable acceptance check. That keeps the repair tied to the problem instead of turning it into an open-ended redesign.
Find the likely cause
Links were added only in one direction.
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
Add useful contextual navigation where readers may need orientation.
A useful topic cluster helps readers move from a broad question to the specific answer they need next.
Check that the repair worked
Test movement between overview and detail from a fresh visit.
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: new cluster pages overlap existing content. Map existing URLs to questions before adding more pages.
Monitor the useful outcome
Track discovery of supporting pages, relevant internal clicks, and completion of reader tasks.
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.