Response has special character rendering has a box with a question mark

and the required COLUMNS keyword. citeturn8view1turn1view0turn7view0

searching says it's the Quad character: https://en.wikipedia.org/wiki/Quad_(typography)

<img width="735" height="118" alt="Image" src="https://github.com/user-attachments/assets/29e2fd3d-7aca-47eb-91d2-688d06849221" />

thread id: 019c81cb-2ba0-7220-8259-89114e33f2d3