# Troubleshooting

<details>

<summary>Sankey Diagram crashes or fails to load</summary>

**Cause:**\
This issue typically occurs due to invalid or conflicting data in the input fields for the Sankey Diagram. The extension may crash or fail if any of the following conditions are met.

***

**Checklist to avoid crashes:**

1. **Source and target dimension members must be unique**
   * If the same members exist in both dimensions (e.g., `[From]` and `[To]`), it creates an **endless loop**, which causes the diagram to crash.
   * ✅ **Solution:** Add a prefix to distinguish them:
     * `from_` + `[From Dimension]`
     * `to_` + `[To Dimension]`
2. **No empty values in dimensions**
   * If either dimension contains null or blank values, the Sankey Diagram will automatically filter those out and may render incorrectly or fail.
3. **Measure must be greater than 0**
   * Sankey flow values must be positive. If the measure used is `0` or negative, the chart may break.

***

**Still having trouble?**\
If you've followed the steps above and are still experiencing issues, please contact our support team. We're happy to help!

</details>


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