I agree with what is written in the document you reported. But I remind you that on the same server with version 3.5 everything works fine. With version 4, the language does not work. with the protocol nx when I have time I try with ssh.
I created the file .profile on the server /home/$USER/.profile
If I export the LANG variable, in the VirtualDeskto the variable LANG is set correctly. But if I restart the VirtualDesktop LANG variable is unset.
It’s possible to set the variable lang with the NoMachine client?
I want to try ssh instead of nx I think maybe using ssh works.