Type Cover not working after Windows 11 upgrade - please help

Hi all,

I hope that this finds everyone safe and well.

I reset my Surface Pro X using the downloadable Surface recovery imagine. All went well, and everything was working fine on Windows 10.

I then received the "Upgrade to Windows 11" alert in Windows Update. Everything seemed to download and install fine, however, upon reboot I have discovered that my Type Cover doesn't work. I have tried restarting numerous times, as well as unplugging / replugging in.

Does anyone have any tips or suggestions I could try to get it working again?

A massive thanks in advance.