If we all raise support tickets regarding this issue, a fix is likely to be prioritised.....
I've just raised this as a support ticket with Microsoft from the Surface application.
Surface app > sign in at top right > click 'click for help' icon top right > enter brief description:
Can you update me on fix for known issue with type cover keyboard not being recognised after surface pro starts up
brief chat, described issue:
(I copy/pasted Miles' description from post from 31/1- thanks Miles_891 )
This is a 100% re-creatable problem:
1: Shutdown using Windows "Shut down".
2: Fold keyboard/cover over display/screen immediately.
3: Lower keyboard/cover and turn on computer with the power button.
When the computer boots, the keyboard will be unresponsive.
the Microsoft support representative confirmed it is a known issue and is being worked on.