There is a bug with 4k monitors thats being adressed, if you have a 4k monitor please change the resolution from the Main Menu Setting to 4k (3840 x 2160 pixels) instead of 2k (2560 x 1440 pixels) to fix the problem with the keypad interaction.
I'm working realy hard to adress it and launch an update.
Ty so much for playing the demo and with your feedback I can continue to improve the game.
Love you all,
SCH GAMING
4k Monitors Resolution Bug!
Source: Steam Community (opens in a new tab)