I have a new problem in my life
I tried to install Leap 42.2 last November. And when I found that keyboard doesn't work in KRDC, I restored an image of 42.1 because didn't have a time to solve this problem.
I've installed 42.2 yesterday and the first thing I checked firstly was KRDC. And the keyboard worked properly! But today it doesn't work again!
I created new user to check one more time - keyboard works. Then I deleted KRDC's config files in my home directory and this have no result - keyboard still doesn't work. It seems like the problem is not with KRDC. But where?

May be someone already had such problem and know the solution. Anyone?
I use RDP (connecting to Windows hosts) and have no possibility to check VNC.