diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d4c4643e..bc2f7e0b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@
 - Enhance: ノートに埋め込まれたメディアのコンテキストメニューから管理者用のファイル管理画面を開けるように ( #15440 )
 - Fix: コンディショナルロールを手動で割り当てできる導線を削除 `#13529`
 - Fix: 埋め込みプレイヤーから外部ページに移動できない問題を修正
+- Fix: Play の再読込時に UI が以前の状態を引き継いでしまう問題を修正 `#14378`
 
 ### Server
 - Fix: `following/invalidate`でフォロワーを解除しようとしているユーザーの情報を返すように
diff --git a/packages/frontend/src/pages/flash/flash.vue b/packages/frontend/src/pages/flash/flash.vue
index 980e8a21b..6294a3f4a 100644
--- a/packages/frontend/src/pages/flash/flash.vue
+++ b/packages/frontend/src/pages/flash/flash.vue
@@ -65,10 +65,13 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { computed, onDeactivated, onUnmounted, ref, watch, shallowRef, defineAsyncComponent } from 'vue';
 import * as Misskey from 'misskey-js';
 import { Interpreter, Parser, values } from '@syuilo/aiscript';
+import { url } from '@@/js/config.js';
+import type { Ref } from 'vue';
+import type { AsUiComponent, AsUiRoot } from '@/scripts/aiscript/ui.js';
+import type { MenuItem } from '@/types/menu.js';
 import MkButton from '@/components/MkButton.vue';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
-import { url } from '@@/js/config.js';
 import { i18n } from '@/i18n.js';
 import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkAsUi from '@/components/MkAsUi.vue';
@@ -82,10 +85,6 @@ import { isSupportShare } from '@/scripts/navigator.js';
 import { copyToClipboard } from '@/scripts/copy-to-clipboard.js';
 import { pleaseLogin } from '@/scripts/please-login.js';
 
-import type { Ref } from 'vue';
-import type { AsUiComponent, AsUiRoot } from '@/scripts/aiscript/ui.js';
-import type { MenuItem } from '@/types/menu.js';
-
 const props = defineProps<{
 	id: string;
 }>();
@@ -199,6 +198,8 @@ async function run() {
 	if (aiscript.value) aiscript.value.abort();
 	if (!flash.value) return;
 
+	components.value = [];
+
 	aiscript.value = new Interpreter({
 		...createAiScriptEnv({
 			storageKey: 'flash:' + flash.value.id,