If you're using a desktop environment that's likely the reason: the message is hidden by your DE, and starting a terminal emulator does not cause a login.
You might be able to see it by switching off your DE and logging in manually through the virtual console.
Jokes aside, that would make me switch to Debian immediately.
The only distro that worked perfectly on my Thinkpad. Ubuntu didn't find the fingerprint scanner.
Definitely not Debian if you're suggesting this to first timers.