MTLN seems to be shorting cables which run tangentially to a surface

**Without MTLN** I get the following result

<img width="956" height="658" alt="Image" src="https://github.com/user-attachments/assets/b92bd24d-2e13-42cb-a6af-0513f76f352f" />

**With  MTLN** I get:

<img width="821" height="630" alt="Image" src="https://github.com/user-attachments/assets/dffbf8ba-c263-4ea9-b9d9-0d4eb2a49d3b" />