Snap Area Issues

Hi all,

New User to BTT and I'm slightly confounded regarding Snap Areas. I've gone thru all tutorials and set up my snap areas just fine. However, when I save and test, no snap area is apparent upon dragging a window to the location.
I feel like I'm doing something very wrong, and it's very obvious, but I'm missing it.
OSX High Sierra BTT V 2.536

Any suggestions?