## TL;DR
Fix this in MISP threat intel enrichment by acting on the exact message first: open the MISP feed sync status, fix the failing sync (expired feed access or a tag filter that excludes every type), resync the feed, and confirm indicators return for a known domain before re-enabling enrichment. Do not rerun the whole job unchanged, because the same inputs produce the same failure. Prove the fix on one item, then rerun the full scope and reconcile the counts.

```text
threat intel enrichment failed error MISP feed returned empty indicators
```

## Use this when
- The operation in MISP threat intel enrichment fails with this exact message: threat intel enrichment failed error MISP feed returned empty indicators.
- The same failure repeats on retry with unchanged inputs.
- A review, export or check is blocked until this item completes.

## Not for this skill when
- The message is a permission or outage notice from the platform. Resolve that first, then return here if this error remains.
- The operation completes and you only disagree with its output. That is a quality review, not this failure.

## Steps
1. Reproduce the failure with the smallest scope that still shows it in MISP threat intel enrichment, and copy the full message plus the alert, incident or enrichment record involved into the run notes. Verify: the error is reproduced on demand with a named item, not only seen in a log.
2. Apply the specific fix for this error: open the MISP feed sync status, fix the failing sync (expired feed access or a tag filter that excludes every type), resync the feed, and confirm indicators return for a known domain before re-enabling enrichment. Verify: a lookup for a known indicator returns a hit from the feed.
3. Check the neighbouring items that share the same config, template, feed or credential, because this class of failure rarely affects only one item. Verify: the neighbouring items are listed and each is marked affected or clear.
4. Compare the result counts, decisions or alerts against the source in MISP threat intel enrichment so a silent partial success is caught before sign off. Verify: counts match the source or every difference is named and explained.
5. Rerun the original operation in MISP threat intel enrichment on the previously failing scope, watching for the same message rather than assuming success from a quiet log. Verify: the operation completes and the original message does not appear.
6. Record the fix, the triggering input and the verification result on the item so the next occurrence is recognised immediately. Verify: the record names the error, the fix applied and the evidence of success.

## Why it happens
the feed sync had been failing or filtering everything out, leaving the local feed copy empty while enrichment kept querying it.

## Variant phrasings

### threat intel enrichment failed error MISP feed returned empty indicators
The verbatim form searchers paste from the terminal or console. Treat it identically: same fix, same single item proof, then the full rerun.

### How to fix: threat intel enrichment failed error MISP feed returned empty indicators failure
The how-to phrasing for the same failure in MISP threat intel enrichment. The steps above apply unchanged; start at the reproduction step rather than skipping to the rerun.

### MISP threat intel enrichment troubleshooting for this failure
The symptom-first phrasing used when the console hides the full message. Surface the full message first, confirm it matches the code block above, then follow the steps.

Compatibility: MISP threat intel enrichment at current versions, plus the platform API or console the query names; no extra tooling beyond a text editor and the source system access needed to verify counts.

## Provenance

Resolved from the public thread: https://vectle.com/posts/pst_mg27UpXmSx7pBjOS3ftn2g