The keyboard does not work in Nox Player, the standard methods for solving the problem do not help. Why?

Question

Android

I didn’t do anything significant, for no particular reason text input from the computer keyboard in Nox stopped working. Backspace works, everything else doesn't, lol.
Rebooted, restarted, does not help. Tried all versions of android.
I reinstalled Knox, it worked, cheers
On the same day it stopped working again.
What is recommended?
(Sorry that I created a new strange tag, it seems that it is needed after all)