UMG scaling is ugly in Game, nice in editor

Hi, With the Editor scaling at 1:1 and the screen size set to the same resolution as my monitor, the images look fine, but then I play in standalone mode the yare very badly scaled.

The image is wrapped with a scale box,

The left is playing in standalone mode, the right of the blue line is the editor, I used the windows snip tool to capture the image, it hasn’t been copied and pasted side by side, but was actually side by side when the image was made. I also notice the blue/gray texture is not rendered properly when playing.

Any pointers as to what I should look into for fixing this?