Hello,
I’ve just updated one of my systems running Debian from Bookworm to Trixie, and after the update when I try to connect to the system with NoMachine all I get on the client machine is a white screen. The host system is running KDE on Wayland (I think it was running Wayland on Bookworm as well, but I have no way of checking now), and when I connect the client I do get the popup message that a client is connected on the host, although after a while on the client the white screen disappears and instead I get the error that the connection with the server was lost with error 104.
Both client and host are running the free version of NoMachine to the latest version available (9.3.7), both system run KDE/Wayland (client is with Sid). The host has a physical display.