`asksign` question not displaying

For example, in the MaximaJupyerExample notebook, `integrate (u^k, u);` shows an input box to enter a response, but the question needing a response is not displayed. 

<img width="645" height="146" alt="Image" src="https://github.com/user-attachments/assets/b65ff7f9-3539-418e-8c5f-edfdbc0ce347" />