Please be assured and to resolve "s-pen" issue kindly follow the given below steps:
>>>>kindly Reset the S Pen: Long press the S Pen remote icon>>the S Pen remote settings screen will automatically open>>tap the More option icon>>tap Reset S Pen.
Or you can also access through Settings:
>>Settings>Advanced Features>S Pen remote>S Pen>More option>Reset S Pen
If the issue still persist, we request you kindly visit the service center as your device needs physical inspection. To check for the nearest Samsung service center kindly click on the link: https://www.samsung.com/in/support/service-center/
