> For the complete documentation index, see [llms.txt](https://help.bioinsight.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.bioinsight.illumina.com/dragen-somatic-for-idt-custom-panels/troubleshooting/launch-failures.md).

# 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 Platform Core

If you need to relaunch the analysis directly in BioInsight Platform Core (Platform Core) — 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 [BioInsight Platform Core — Requeue Analysis documentation](https://help.connected.illumina.com/analysis/analysis_autolaunch#requeue-analysis).


---

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