お疲れ様です、大変お待たせいたしました。
フトコロ様のプラグインは、MVのデフォルトバトラー素材ではちゃんと動いていますが、
YED_SideviewBattlerと併用すると勝利画面で
「Can not read property 'index' of undefined」という提示が出ます。
F8を押すと下記のようなものが出ます…
/E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20World%20System%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/plugins/MoreStateOverlay.js:129 Uncaught ReferenceError: Yanfly is not defined
pixi.js:24595
Pixi.js 4.0.3 - ✰ WebGL ✰
http://www.pixijs.com/ ♥♥♥
rpg_managers.js:1756 TypeError: Cannot read property 'index' of undefined
at Sprite_Actor.updateSideviewFrame (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20W…%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/plugins/YED_SideviewBattler.js:849:37)
at Sprite_Actor.updateFrame (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20W…%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/plugins/YED_SideviewBattler.js:834:18)
at Sprite_Actor.Sprite_Battler.updateMain (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20World%20System%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/rpg_sprites.js:512:14)
at Sprite_Actor.updateMain (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20World%20System%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/rpg_sprites.js:748:41)
at Sprite_Actor.Sprite_Battler.update (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20World%20System%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/rpg_sprites.js:493:14)
at Sprite_Actor.Sprite_Battler.update (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20W…0Debug%20-%20%E5%89%AF%E6%9C%AC/js/plugins/YEP_BattleEngineCore.js

38)
at Sprite_Actor.update (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20World%20System%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/rpg_sprites.js:736:37)
at file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20World%20System%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/rpg_core.js

19
at Array.forEach (native)
at Sprite.update (file:///E:/my%20workhouse/game%20house/MVTry/Book%20of%20The%20Sleeping%20World%20System%20Debug%20-%20%E5%89%AF%E6%9C%AC/js/rpg_core.js

19)
また、攻撃の前から攻撃のモーションが流されて、攻撃の時が待機に戻ったり、攻撃の時だけ一瞬バトラーが消えたりもします。
フレームのスピードも少し速くなる気がしますが、ここは一応YED_SideviewBattlerで調整できますので大丈夫かなとは思います。
何度もお手数をおかけて大変恐縮ですが、よろしくお願いいたします。