Load Stream Level from Menu BP

I have a 3 levels. MenuLevel, Level1 and Level2
In the MainMenu Level BP I call up a Widget (image attached) that shows the buttons and and such to select a level.
Alls well with that and works fine.
I want to use Level Streaminng instead, so the spinner can keep going to let the viewer know its still loading. These levels are going to be pretty big.

So I set up the levels like this:

  • -MenuLevel - Persistent (contains only the MainMenu BP Widget)
  • —LVL1
  • —LVL2

In the BP attached, if I use “Load Stream Level” instead of “Open Level” the level never shows up.
Is there another step I’m missing?