I have a windows 10 machine, Nvidia gforce 1050ti, 4 outputs set up in proclaim.
I also have Video Input enabled, so I can feed my camera into proclaim, and overlay lyrics to it.
When I'm choosing what to send to each output in the "Display" option area, if I tell a certain output to use "Slides (Foreground only)", then I go "on Air", this output might decide to display the camera feed with no words, or with words.
I'll go into the setting, change the display assignments, then go back "on air", then go back to display, change it back, and then it might decide to display what I have told it to, corectly. I will be correct until I take it off air again, where it may or may not choose to display my chosen options or not.
It seems random. It has also chosen to randomly display the wrong thing in the middle of being "on air". (the camera feed (i.e background) will just suddenly pop in on a feed that I've selected "foreground only" on.