diff --git a/packages/ui-default/components/message/index.page.js b/packages/ui-default/components/message/index.page.js
index 337f97487..ed84b1de9 100644
--- a/packages/ui-default/components/message/index.page.js
+++ b/packages/ui-default/components/message/index.page.js
@@ -42,7 +42,7 @@ const messagePage = new AutoloadPage('messagePage', (pagename) => {
         }).open();
       } else if (msg.udoc._id === 1 && msg.mdoc.flag & 4) {
         new VjNotification({
-          message: 'You received a system message, click here to view.',
+          message: i18n('You received a system message, click here to view.'),
           duration: 15000,
           action: () => window.open(`/home/messages?uid=${msg.udoc._id}`, '_blank'),
         }).show();
diff --git a/packages/ui-default/components/scratchpad/ScratchpadEditorContainer.jsx b/packages/ui-default/components/scratchpad/ScratchpadEditorContainer.jsx
index c347b6030..af055197d 100644
--- a/packages/ui-default/components/scratchpad/ScratchpadEditorContainer.jsx
+++ b/packages/ui-default/components/scratchpad/ScratchpadEditorContainer.jsx
@@ -46,6 +46,8 @@ export default connect(mapStateToProps, mapDispatchToProps)(class MonacoEditor e
           }
         }),
       );
+      window.editor = this.editor;
+      window.monaco = monaco;
     }
   }
 
@@ -72,8 +74,11 @@ export default connect(mapStateToProps, mapDispatchToProps)(class MonacoEditor e
     const { load } = await import('vj/components/monaco/loader');
     const { monaco } = await load([language]);
     if (prevProps.language !== language) {
-      monaco.editor.setModelLanguage(model, language);
-      editor.updateOptions({ mode: language });
+      const val = model.getValue();
+      model.dispose();
+      const uri = monaco.Uri.parse(`hydro://${UiContext.pdoc.pid || UiContext.pdoc.docId}.${language}`);
+      this.model = monaco.editor.createModel(val, language, uri);
+      editor.setModel(this.model);
     }
     if (editor) {
       if (prevProps.mainSize !== mainSize
diff --git a/packages/ui-default/components/scratchpad/ScratchpadToolbarContainer.jsx b/packages/ui-default/components/scratchpad/ScratchpadToolbarContainer.jsx
index 89383d9c9..e1e6cef48 100644
--- a/packages/ui-default/components/scratchpad/ScratchpadToolbarContainer.jsx
+++ b/packages/ui-default/components/scratchpad/ScratchpadToolbarContainer.jsx
@@ -66,27 +66,36 @@ const mapDispatchToProps = (dispatch) => ({
   },
 });
 
+const LANGS = {};
+const prefix = new Set(Object.keys(window.LANGS).filter((i) => i.includes('.')).map((i) => i.split('.')[0]));
+const domainId = UiContext.pdoc.reference?.domainId || UiContext.pdoc.domainId;
+for (const key in window.LANGS) {
+  if (prefix.has(key)) continue;
+  if (UiContext.pdoc.config.langs && !UiContext.pdoc.config.langs.includes(key)) continue;
+  if (window.LANGS[key].domain && !window.LANGS[key].domain.includes(domainId)) continue;
+  LANGS[key] = window.LANGS[key];
+}
+const keys = Object.keys(LANGS);
+
 export default connect(mapStateToProps, mapDispatchToProps)(class ScratchpadToolbarContainer extends React.PureComponent {
   static contextTypes = {
     store: PropTypes.object,
   };
 
+  constructor(props) {
+    super(props);
+    if (!LANGS[this.props.editorLang]) {
+      // preference not allowed
+      const key = keys.find((i) => LANGS[i].pretest === this.props.editorLang);
+      this.props.setEditorLanguage(key || Object.keys(LANGS)[0]);
+    }
+  }
+
   componentDidMount() {
     if (this.props.recordsVisible) this.props.loadSubmissions();
   }
 
   render() {
-    const LANGS = {};
-    const prefix = new Set(Object.keys(window.LANGS).filter((i) => i.includes('.')).map((i) => i.split('.')[0]));
-    const domainId = UiContext.pdoc.reference?.domainId || UiContext.pdoc.domainId;
-    for (const key in window.LANGS) {
-      if (prefix.has(key)) continue;
-      if (UiContext.pdoc.config.langs && !UiContext.pdoc.config.langs.includes(key)) continue;
-      if (window.LANGS[key].domain && !window.LANGS[key].domain.includes(domainId)) continue;
-      LANGS[key] = window.LANGS[key];
-    }
-    const keys = Object.keys(LANGS);
-    if (!keys.includes(this.props.editorLang)) this.props.setEditorLanguage(keys[0]);
     let canUsePretest = ['default', 'fileio'].includes(UiContext.pdoc.config?.type);
     if (UiContext.pdoc.config?.type === 'remote_judge') {
       if (window.LANGS[this.props.editorLang].pretest) canUsePretest = true;
diff --git a/packages/ui-default/components/scratchpad/reducers/editor.js b/packages/ui-default/components/scratchpad/reducers/editor.js
index 6d8acecc6..ef1c4b68c 100644
--- a/packages/ui-default/components/scratchpad/reducers/editor.js
+++ b/packages/ui-default/components/scratchpad/reducers/editor.js
@@ -2,24 +2,22 @@ let cacheKey = `${UserContext._id}/${UiContext.pdoc.domainId}/${UiContext.pdoc.d
 if (UiContext.tdoc?._id && UiContext.tdoc.rule !== 'homework') cacheKey += `@${UiContext.tdoc._id}`;
 
 export default function reducer(state = {
-  lang: UiContext.codeLang,
+  lang: localStorage.getItem(`${cacheKey}#lang`) || UiContext.codeLang,
   code: localStorage.getItem(cacheKey) || UiContext.codeTemplate,
 }, action) {
-  switch (action.type) {
-  case 'SCRATCHPAD_EDITOR_UPDATE_CODE': {
+  if (action.type === 'SCRATCHPAD_EDITOR_UPDATE_CODE') {
     localStorage.setItem(cacheKey, action.payload);
     return {
       ...state,
       code: action.payload,
     };
   }
-  case 'SCRATCHPAD_EDITOR_SET_LANG': {
+  if (action.type === 'SCRATCHPAD_EDITOR_SET_LANG') {
+    localStorage.setItem(`${cacheKey}#lang`, action.payload);
     return {
       ...state,
       lang: action.payload,
     };
   }
-  default:
-    return state;
-  }
+  return state;
 }
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index 3572957c6..2b4ee808f 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.32.11",
+  "version": "4.32.12",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",
@@ -21,7 +21,7 @@
     "@fontsource/ubuntu-mono": "^4.5.3",
     "@hydrooj/utils": "workspace:*",
     "@types/gulp-if": "^0.0.34",
-    "@types/jquery": "^3.5.13",
+    "@types/jquery": "^3.5.14",
     "@types/json-schema": "^7.0.9",
     "@types/katex": "^0.11.1",
     "@types/qrcode": "^1.4.2",
@@ -41,16 +41,16 @@
     "emojis-keywords": "2.0.0",
     "emojis-list": "2.1.0",
     "esbuild-loader": "^2.18.0",
-    "eslint": "^8.9.0",
+    "eslint": "^8.10.0",
     "eslint-config-airbnb": "^18.2.1",
     "eslint-import-resolver-webpack": "^0.13.2",
     "eslint-plugin-import": "^2.25.4",
     "eslint-plugin-jsx-a11y": "^6.5.1",
-    "eslint-plugin-react": "^7.28.0",
+    "eslint-plugin-react": "^7.29.2",
     "fancy-log": "^1.3.3",
     "file-loader": "^6.2.0",
     "friendly-errors-webpack-plugin": "^1.7.0",
-    "graphiql": "^1.5.19",
+    "graphiql": "^1.6.0",
     "gulp": "^4.0.2",
     "gulp-cli": "^2.3.0",
     "gulp-iconfont": "^11.0.1",
@@ -67,14 +67,14 @@
     "monaco-editor-nls": "^2.0.0",
     "monaco-editor-webpack-plugin": "^7.0.1",
     "monaco-themes": "^0.4.0",
-    "nanoid": "^3.3.0",
+    "nanoid": "^3.3.1",
     "normalize.css": "^8.0.1",
     "nprogress": "^0.2.0",
     "pickadate": "^3.6.4",
     "plugin-error": "^1.0.1",
     "postcss-loader": "^3.0.0",
     "prism-themes": "^1.9.0",
-    "prismjs": "^1.26.0",
+    "prismjs": "^1.27.0",
     "prop-types": "^15.8.1",
     "qrcode": "^1.5.0",
     "raw-loader": "^4.0.2",
@@ -89,7 +89,7 @@
     "redux-thunk": "^2.4.1",
     "rupture": "^0.7.1",
     "slideout": "^1.0.1",
-    "sockjs-client": "^1.5.2",
+    "sockjs-client": "^1.6.0",
     "speed-measure-webpack-plugin": "^1.5.0",
     "sticky-kit": "^1.1.3",
     "style-loader": "^2.0.0",
@@ -111,7 +111,7 @@
   },
   "dependencies": {
     "esbuild": "0.14.3",
-    "fs-extra": "^10.0.0",
+    "fs-extra": "^10.0.1",
     "js-yaml": "^4.1.0",
     "jsesc": "^3.0.2",
     "katex": "^0.15.2",
@@ -125,7 +125,7 @@
     "markdown-it-table-of-contents": "^0.6.0",
     "mongodb": "^3.7.3",
     "nunjucks": "^3.2.3",
-    "react-query": "^3.34.15",
+    "react-query": "^3.34.16",
     "streamsaver": "^2.0.6",
     "xss": "^1.0.10"
   }