Package: x2goclient

I am connecting from Ubuntu Linux 18 to another Ubuntu linux machine with x2go. Connection works, but some keys don't, especially arrow keys. When I press up arrow, it starts screen capture:


I tried some recipes from this question: but they don't help. setxkbmap us -print | xkbcomp - $DISPLAY -- doesn't fix the problem. I tried to play with keyboard settings here:


but it doesn't help also. How can I fix it?

I've followed instruction from updating x2goclient to and x2goserver to The problem is still there.