Well, we have a bug related to this: Now everytime second user get logged, we're seeing "Authentication Failure: Switch to greeter" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1733557
Well, we have a bug related to this: Now everytime second user get logged, we're seeing "Authentication Failure: Switch to greeter" https:/ /bugs.launchpad .net/ubuntu/ +source/ unity/+ bug/1733557