My issue seems very similar to what’s described here: https://www.nomachine.com/TR08R09815. However I don’t get authentication error… just nothing happens. I can enter the password, but on enter it just stays there. Screen is not frozen as when I scroll down and up again, I can re-enter the password. Entering anything incorrect is detected properly, so it’s really the unlocking itself that doesn’t work.
Running latest NoMachine 7.0.211_4 on Ubuntu 20.04.
After a reboot I can login, but once the screen is locked, I cannot unlock.