Materials using using 2D render target textures do not show up on launch in UMG

I have an image in a UMG that is supposed to show what is seen but a Scene Capture 2D camera that is set up in the level. This works fine in the editor (PIE), however when using the Launch button the image in the UMG will no longer show up at all.

1. Open the attached project
2. Click the play for (PIE)
3. Notice the image shows up (Upper left corner of the screen)
4. Click Stop
5. Click the Launch button
6. Notice that the image does not show up