Hi:
I had the same problem: chuwi wouldn’t recognise the docking keyboard. What I did was to turn it off from windows while connected to the docking keyboard and turning it on in BIOS mode (On+Volume +). As I was unable to move very much through the screen menu, I plugged an usb mouse and suddenly… the keyboard and its trackpad were working .
I don’t know why it began to work: I just wanted to see if there was some related option in the BIOS. But, while in BIOS mode and after plugging the usb mouse it started to work fine