@Archeia Don't know if this is any help, but I found that by adding
components:
<...other components>
EnemyVisualSelect:
type: Window
offset:
x: 0
y: 40
fontName: default
fontSize: default
fontOutline: default
fontShadow: default
lineHeight: default
textPadding: default
windowPadding: default
windowSkin: default
cursor: default
customBackground:
enable: false
image: none
from the sideview project's `SceneBattle.yaml` to the barebones `SceneBattle.yaml` in Luna Engine Base lets the scene load, albeit a bit ugly, but load it does.