@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.