Button inputs PressIn and PressOut do not function

Hi there everyone. I’m making a map in hammer, (for CSS, but I think GMod has similar button entities) and I’ve run into a problem of certain Inputs not working.

So I have three func_buttons, one of which is supposed to control the other two. When the Master Button is pressed, it is supposed to either make the others go in or out. However, it appears that only the Press (toggle) input will work on the other two buttons, whereas the PressIn and PressOut inputs do not function at all.

Has anyone else noticed this?