diff --git a/src/components/editor.tsx b/src/components/editor.tsx
index 5300553..24e199c 100644
--- a/src/components/editor.tsx
+++ b/src/components/editor.tsx
@@ -342,9 +342,13 @@ export const Editor: FC<EditorProps> = ({ onUpdate: updateState, data: editor, .
     const file = readJson(editor.path) as TreeModel;
     editor.data = b3util.createTreeData(file.root);
     editor.autoId = b3util.refreshTreeDataId(editor.data);
-    editor.graph.changeData(editor.data);
-    editor.graph.layout();
-    restoreViewport();
+    editor.unsave = false;
+    updateState();
+    if (editor.graph) {
+      editor.graph.changeData(editor.data);
+      editor.graph.layout();
+      restoreViewport();
+    }
   };
 
   const checkSubtree = () => {
diff --git a/src/components/workspace.tsx b/src/components/workspace.tsx
index 486b955..c7f4ec2 100644
--- a/src/components/workspace.tsx
+++ b/src/components/workspace.tsx
@@ -28,10 +28,10 @@ export const Workspace: FC = () => {
     edit: useWorkspace((state) => state.edit),
     editing: useWorkspace((state) => state.editing),
     editors: useWorkspace((state) => state.editors),
-    modifiedEditors: useWorkspace((state) => state.modifiedEditors),
     fileTree: useWorkspace((state) => state.fileTree),
     find: useWorkspace((state) => state.find),
     init: useWorkspace((state) => state.init),
+    modifiedTime: useWorkspace((state) => state.modifiedTime),
     isShowingSearch: useWorkspace((state) => state.isShowingSearch),
     onShowingSearch: useWorkspace((state) => state.onShowingSearch),
     openProject: useWorkspace((state) => state.openProject),
@@ -96,17 +96,11 @@ export const Workspace: FC = () => {
 
   useEffect(() => {
     const editor = workspace.editing;
-    if (editor && workspace.modifiedEditors.includes(editor)) {
+    if (editor?.alertReload) {
       if (isShowingAlert) {
         return;
       }
       setShowingAlert(true);
-      const modifiedEditors = workspace.modifiedEditors.filter((v) => v !== editor);
-      console.log(
-        "modified:",
-        editor.path,
-        modifiedEditors.map((v) => v.path)
-      );
       const alert = modal.confirm({
         centered: true,
         content: (
@@ -123,21 +117,21 @@ export const Workspace: FC = () => {
               <Button
                 type="primary"
                 onClick={() => {
+                  editor.alertReload = false;
                   editor.dispatch("reload");
                   alert.destroy();
                   keysRef.current?.focus();
                   setShowingAlert(false);
-                  useWorkspace.setState({ modifiedEditors: modifiedEditors });
                 }}
               >
                 {t("reload")}
               </Button>
               <Button
                 onClick={() => {
+                  editor.alertReload = false;
                   alert.destroy();
                   keysRef.current?.focus();
                   setShowingAlert(false);
-                  useWorkspace.setState({ modifiedEditors: modifiedEditors });
                 }}
               >
                 {t("cancel")}
@@ -147,7 +141,7 @@ export const Workspace: FC = () => {
         ),
       });
     }
-  }, [workspace.modifiedEditors, workspace.editing]);
+  }, [workspace.editing, workspace.modifiedTime]);
 
   const showSaveDialog = (editor: EditorStore) => {
     if (isShowingAlert) {
diff --git a/src/contexts/workspace-context.ts b/src/contexts/workspace-context.ts
index 0c5ab7b..2394381 100644
--- a/src/contexts/workspace-context.ts
+++ b/src/contexts/workspace-context.ts
@@ -51,6 +51,8 @@ export class EditorStore {
   dragDstId?: string;
   unsave: boolean = false;
   modifiedTime: number = Date.now();
+  alertReload: boolean = false;
+
   historyStack: NodeModel[] = [];
   historyIndex: number = 0;
   selectedId?: string | null;
@@ -130,9 +132,10 @@ export type WorkspaceStore = {
   allFiles: Map<string, FileMeta>;
   fileTree?: FileTreeType;
   editors: EditorStore[];
-  modifiedEditors: EditorStore[];
   editing?: EditorStore;
 
+  modifiedTime: number;
+
   isShowingSearch: boolean;
   onShowingSearch: (isShowingSearch: boolean) => void;
 
@@ -392,6 +395,8 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
     }
   },
 
+  modifiedTime: 0,
+
   isShowingSearch: false,
   onShowingSearch: (isShowingSearch) => {
     set({ isShowingSearch });
@@ -500,17 +505,10 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
           } else {
             const fullpath = fs.realpathSync(`${workspace.workdir}/${filename}`);
             const editor = workspace.find(fullpath);
-            if (
-              editor &&
-              editor.modifiedTime + 500 < fs.statSync(fullpath).mtimeMs &&
-              !workspace.modifiedEditors.includes(editor)
-            ) {
+            if (editor && editor.modifiedTime + 500 < fs.statSync(fullpath).mtimeMs) {
               if (editor.unsave) {
-                const modifiedEditors = workspace.modifiedEditors;
-                console.log("modified1:", editor.path, modifiedEditors);
-                modifiedEditors.push(editor);
-                set({ modifiedEditors: modifiedEditors });
-                console.log("modified2:", editor.path, modifiedEditors);
+                editor.alertReload = true;
+                set({ modifiedTime: Date.now() });
               } else {
                 editor.dispatch("reload");
               }