Has anyone been able to get the pressure pen and Deco 1 tablet to work with Krita 4.0?

Thank you,
Ron

I figured it out! You have to open the driver window for the XP-PEN tablet and enable "Windows Ink". This option is located in the lower left corner of the PenTablet window. With that option on, Krita responses well to the pen pressure. Hope this helps!

( I have my XP-pen installed on my Windows 10 Pro 64-bit system.)