Yes. It's handling of logins is totally borked. One of the major reasons I only check it once or twice a week, it's just horribly designed. And after a post or 2, it logs you back out again.
/var/log/* seems to be replaced by journalctl (or at least this is the viewer app), and while the docs describe how to use it I still don't know what arguments it needs to give me the list of stuff I want. For example, I want to see a list of user logins. I'm aware sshd handles ssh logins, but what about local logins and general user authentication?