Boolean difference error


I'm trying to cut an arc tangent object from a cylinder.

<img width="538" height="609" alt="Image" src="https://github.com/user-attachments/assets/88c78f1c-7324-43d4-840f-a3e7cdbcbe21" />

<img width="538" height="609" alt="Image" src="https://github.com/user-attachments/assets/602d8e1f-82ab-498d-869f-2a29fd527104" />


using version 3.2 (3.2~960f08b3) on a Mac with Sequoia 15.5