# Analysis Failed to Launch

If an auto-launched analysis fails or does not start, you can **requeue** (relaunch) it from BaseSpace Sequence Hub (BSSH). Common reasons for requeuing include intermittent analysis failures and sample sheet errors.

## Requeue from BaseSpace

1. Navigate to your run in the **Runs** tab of BaseSpace Sequence Hub.
2. From the **Run Summary** page, select **Status > Requeue > Planned Run**.
3. Upload the original sample sheet, or a corrected v2 sample sheet.

{% hint style="info" %}
On this step the system will warn you about changes on the Sample sheet. Click continue either way.
{% endhint %}

1. The analysis will relaunch automatically with the updated configuration.

## Manually Launch in ICA

If you need to relaunch the analysis directly in Illumina Connected Analytics (ICA) — for example, to use different pipeline settings or link data from a different project:

1. Link the sequencing run output data from the **ilmn-runs** folder to a user-managed project. **Link only the individual run folder, not the entire `ilmn-runs` directory.**
2. If the issue was a sample sheet error, download, correct, and re-upload the sample sheet to the user-managed project.
3. Link the appropriate DRAGEN analysis pipeline bundle to the project.
4. Launch the pipeline with the corrected inputs.

For detailed instructions, refer to the [Illumina Connected Analytics — Requeue Analysis documentation](https://help.connected.illumina.com/analysis/analysis_autolaunch#requeue-analysis).


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://help.connected.illumina.com/dragen-somatic-for-idt-custom-panels/troubleshooting/launch-failures.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.