Show black screen setting doesn't save between sessions

[kamcknig]

I have added a computer to my Teamviewer account. I've gone into the properties and changed "Remote Input" to "Disable remote input and show black screen." When I log into that computer with Teamviewer on another machine it will show the black screen when it's on the windows login screen. Then when I actually log into windows all of a sudden it shows the screens again. If I open the toolbar at the top of the screen the "show black screen" and "disable remote input" options are both unchecked and I have to check it in order to show the black screen again. Why does this setting not get saved? And why does it show a black screen for login but not for my actual windows session? Thanks, Kyle