S Pen Button not working

I recently purchased the Samsung Galaxy S25 Ultra and I am experiencing an issue with the S Pen. The button on the S Pen is not working at all, and I noticed that the Air Actions option, which should allow me to use the button for remote functions, is completely missing from the settings menu.

I have tried restarting the device and reconnecting the S Pen, but the problem persists. Could you please assist me in resolving this issue or advise if this is a known problem with this model?

Thank you for your support.

Selim M.