---
id: workflow.troubleshooting.execution
title: Runs, missing outputs, and output mapping
summary: An experiment cannot start, has incomplete behavior, or contains unmatched external responses.
kind: error
product_area: troubleshooting
status: stable
updated: 2026-11-11
canonical: /docs/troubleshooting/execution
---

# Runs, missing outputs, and output mapping

## Symptom

An experiment cannot start, has incomplete behavior, or contains unmatched external responses.

## Likely causes

| What you observe | Focused guide |
| --- | --- |
| Managed execution or evaluation progress is blocked | [Benchmark run troubleshooting](/docs/troubleshooting/benchmark-runs) |
| A response or recorded failure is absent | [Missing Outputs](/docs/troubleshooting/missing-outputs) |
| Imported rows do not match the exact Case manifest | [Output mapping troubleshooting](/docs/troubleshooting/output-mapping) |

## Fix

Identify the Run, candidate, Benchmark Version, and execution path. Separate infrastructure failure, candidate failure, missing submission, mapping rejection, and evaluation completeness before interpreting scores.

Follow the focused guide for the actual state you observe; keep accepted records and explicit human decisions intact.

## Prevention

Preserve exact object and version identities, review the relevant source context, and inspect the accepted state before comparing outcomes.

## Related task pages

{% related-card-grid title="Return to the workflow" %}
- [Complete your first alignment loop](/docs/quickstart)
{% /related-card-grid %}

## Related reference pages

{% related-card-grid title="Diagnose the observed state" %}
- [Benchmark run troubleshooting](/docs/troubleshooting/benchmark-runs)
- [Missing Outputs](/docs/troubleshooting/missing-outputs)
- [Output mapping troubleshooting](/docs/troubleshooting/output-mapping)
{% /related-card-grid %}