I just discovered another aspect of this bug. If there are 3 users on your system: A, Light display manager and Z. If A is selected by default at the login screen then clicking on Z does nothing. First you have to click on LDM and only then you can click on user Z.
I just discovered another aspect of this bug. If there are 3 users on your system: A, Light display manager and Z. If A is selected by default at the login screen then clicking on Z does nothing. First you have to click on LDM and only then you can click on user Z.