Hiding icons in smaller breakpoints is not working

@Norm having a little challenge. On my current project, i want to be able to hide two logos on the smallest breakpoint. i hide them, but then they hide at all other breakpoints too. I know the small breakpoints set the rest. so i unhide them on the other breakpoints and they are then also UNHIDDEN on the smallest one too.

There appears to be no way i can hide these logos on just one breakpoint, is this a bug as i seem to recall i could on other projects. thanks @Norm

Are you using the visibility controls or classes to do this?