diff --git a/src/renderer/hooks/useNotifications.ts b/src/renderer/hooks/useNotifications.ts
index 8963a83bc..827b602e7 100644
--- a/src/renderer/hooks/useNotifications.ts
+++ b/src/renderer/hooks/useNotifications.ts
@@ -165,6 +165,9 @@ export const useNotifications = (): UseNotificationsResult => {
   const notificationCount = getNotificationCount(notifications);
   const hasNotifications = notificationCount > 0;
   const hasMoreAccountNotifications = hasMoreNotifications(notifications);
+  const hasAnyAccountError = notifications.some(
+    (account) => account.error !== null,
+  );
 
   const isErrorOrPaused = isError || isPaused;
 
@@ -211,9 +214,9 @@ export const useNotifications = (): UseNotificationsResult => {
       .updateNotificationStatus(
         notificationCount,
         hasMoreAccountNotifications,
-        isErrorOrPaused,
+        hasAnyAccountError,
       );
-  }, [notificationCount, hasMoreAccountNotifications, isErrorOrPaused]);
+  }, [notificationCount, hasMoreAccountNotifications, hasAnyAccountError]);
 
   const refetchNotifications = useCallback(async () => {
     await refetch();
diff --git a/src/renderer/stores/defaults.ts b/src/renderer/stores/defaults.ts
index c83ab06ff..f8b5e2ab4 100644
--- a/src/renderer/stores/defaults.ts
+++ b/src/renderer/stores/defaults.ts
@@ -40,7 +40,7 @@ export const DEFAULT_FILTERS_STATE: FiltersState = {
 export const DEFAULT_RUNTIME_STATE = {
   notificationCount: 0,
   hasMoreAccountNotifications: false,
-  isError: false,
+  hasAnyAccountError: false,
   isOnline: true,
 };
 
diff --git a/src/renderer/stores/subscriptions.test.ts b/src/renderer/stores/subscriptions.test.ts
index 46ef75798..d203b5feb 100644
--- a/src/renderer/stores/subscriptions.test.ts
+++ b/src/renderer/stores/subscriptions.test.ts
@@ -203,7 +203,7 @@ describe('renderer/stores/subscriptions.ts', () => {
       expect(tray.setTrayIconColorAndTitle).toHaveBeenCalledTimes(1);
     });
 
-    it('should trigger setTrayIconColorAndTitle when isError changes', () => {
+    it('should trigger setTrayIconColorAndTitle when hasAnyAccountError changes', () => {
       useRuntimeStore.getState().updateNotificationStatus(0, false, true);
 
       expect(tray.setTrayIconColorAndTitle).toHaveBeenCalledTimes(1);
diff --git a/src/renderer/stores/subscriptions.ts b/src/renderer/stores/subscriptions.ts
index 5b07292d2..a29509fee 100644
--- a/src/renderer/stores/subscriptions.ts
+++ b/src/renderer/stores/subscriptions.ts
@@ -154,7 +154,7 @@ export function initializeStoreSubscriptions(): () => void {
     (state) => ({
       notificationCount: state.notificationCount,
       hasMoreAccountNotifications: state.hasMoreAccountNotifications,
-      isError: state.isError,
+      hasAnyAccountError: state.hasAnyAccountError,
       isOnline: state.isOnline,
     }),
     setTrayIconColorAndTitle,
diff --git a/src/renderer/stores/types.ts b/src/renderer/stores/types.ts
index a1892f96d..a36e66ba7 100644
--- a/src/renderer/stores/types.ts
+++ b/src/renderer/stores/types.ts
@@ -308,7 +308,7 @@ export type SettingsStore = SettingsState & SettingsActions;
 export interface RuntimeState {
   notificationCount: number;
   hasMoreAccountNotifications: boolean;
-  isError: boolean;
+  hasAnyAccountError: boolean;
   isOnline: boolean;
 }
 
@@ -322,7 +322,7 @@ export interface RuntimeActions {
   updateNotificationStatus: (
     notificationCount: number,
     hasMoreAccountNotifications: boolean,
-    isError: boolean,
+    hasAnyAccountError: boolean,
   ) => void;
 
   /**
diff --git a/src/renderer/stores/useRuntimeStore.test.ts b/src/renderer/stores/useRuntimeStore.test.ts
index f7f1bc3ca..ce5218473 100644
--- a/src/renderer/stores/useRuntimeStore.test.ts
+++ b/src/renderer/stores/useRuntimeStore.test.ts
@@ -5,31 +5,34 @@ describe('renderer/stores/useRuntimeStore.ts', () => {
     const {
       notificationCount,
       hasMoreAccountNotifications,
-      isError,
+      hasAnyAccountError,
       isOnline,
     } = useRuntimeStore.getState();
 
     expect(notificationCount).toBe(0);
     expect(hasMoreAccountNotifications).toBe(false);
-    expect(isError).toBe(false);
+    expect(hasAnyAccountError).toBe(false);
     expect(isOnline).toBe(true);
   });
 
   it('should update notification status', () => {
-    useRuntimeStore.getState().updateNotificationStatus(10, true, false);
+    useRuntimeStore.getState().updateNotificationStatus(10, true, true);
 
-    const { notificationCount, hasMoreAccountNotifications, isError } =
-      useRuntimeStore.getState();
+    const {
+      notificationCount,
+      hasMoreAccountNotifications,
+      hasAnyAccountError,
+    } = useRuntimeStore.getState();
 
     expect(notificationCount).toBe(10);
     expect(hasMoreAccountNotifications).toBe(true);
-    expect(isError).toBe(false);
+    expect(hasAnyAccountError).toBe(true);
   });
 
-  it('should reflect error state', () => {
+  it('should reflect hasAnyAccountError state', () => {
     useRuntimeStore.getState().updateNotificationStatus(0, false, true);
 
-    expect(useRuntimeStore.getState().isError).toBe(true);
+    expect(useRuntimeStore.getState().hasAnyAccountError).toBe(true);
   });
 
   it('should update online status', () => {
diff --git a/src/renderer/stores/useRuntimeStore.ts b/src/renderer/stores/useRuntimeStore.ts
index 76eb77233..9b68ae885 100644
--- a/src/renderer/stores/useRuntimeStore.ts
+++ b/src/renderer/stores/useRuntimeStore.ts
@@ -19,13 +19,17 @@ const useRuntimeStore = create<RuntimeStore>()(
   subscribeWithSelector((set) => ({
     ...DEFAULT_RUNTIME_STATE,
 
-    /** Updates the notification count, hasMore flag, and error flag from the latest fetch result. */
+    /** Updates the notification count, hasMore flag, and account error flag from the latest fetch result. */
     updateNotificationStatus: (
       notificationCount: number,
       hasMoreAccountNotifications: boolean,
-      isError: boolean,
+      hasAnyAccountError: boolean,
     ) => {
-      set({ notificationCount, hasMoreAccountNotifications, isError });
+      set({
+        notificationCount,
+        hasMoreAccountNotifications,
+        hasAnyAccountError,
+      });
     },
 
     /** Updates the online/offline connectivity status. */
diff --git a/src/renderer/utils/system/tray.test.ts b/src/renderer/utils/system/tray.test.ts
index 7dfe1b788..ad4e33af2 100644
--- a/src/renderer/utils/system/tray.test.ts
+++ b/src/renderer/utils/system/tray.test.ts
@@ -11,7 +11,7 @@ describe('renderer/utils/system/tray.ts', () => {
     useRuntimeStore.setState({
       notificationCount: 0,
       hasMoreAccountNotifications: false,
-      isError: false,
+      hasAnyAccountError: false,
       isOnline: true,
     });
     useSettingsStore.setState({
@@ -121,8 +121,8 @@ describe('renderer/utils/system/tray.ts', () => {
       );
     });
 
-    it('should pass appState error when isError is true', () => {
-      useRuntimeStore.setState({ isError: true });
+    it('should pass appState error when any account has an error', () => {
+      useRuntimeStore.setState({ hasAnyAccountError: true });
 
       setTrayIconColorAndTitle();
 
@@ -135,8 +135,8 @@ describe('renderer/utils/system/tray.ts', () => {
       expect(updateTrayTitleSpy).toHaveBeenCalledWith('');
     });
 
-    it('should pass appState offline (not error) when both isError and isOnline are false', () => {
-      useRuntimeStore.setState({ isError: true, isOnline: false });
+    it('should pass appState offline (not error) when both hasAnyAccountError and isOnline are false', () => {
+      useRuntimeStore.setState({ hasAnyAccountError: true, isOnline: false });
 
       setTrayIconColorAndTitle();
 
diff --git a/src/renderer/utils/system/tray.ts b/src/renderer/utils/system/tray.ts
index 8ed6d97ec..cfa19153c 100644
--- a/src/renderer/utils/system/tray.ts
+++ b/src/renderer/utils/system/tray.ts
@@ -12,7 +12,7 @@ import { updateTrayColor, updateTrayTitle } from './comms';
  * Updates the tray icon and title using the current notification status,
  * online status, and settings store values.
  *
- * Notification status (count, hasMore, isError) is read from useRuntimeStore,
+ * Notification status (count, hasMore, hasAnyAccountError) is read from useRuntimeStore,
  * which is kept up-to-date by useNotifications with already-filtered values.
  * This avoids re-applying filter logic against the raw query cache.
  *
@@ -20,8 +20,12 @@ import { updateTrayColor, updateTrayTitle } from './comms';
  * whether triggered by a notification fetch, a settings change, or an online/offline event.
  */
 export function setTrayIconColorAndTitle() {
-  const { notificationCount, hasMoreAccountNotifications, isError, isOnline } =
-    useRuntimeStore.getState();
+  const {
+    notificationCount,
+    hasMoreAccountNotifications,
+    hasAnyAccountError,
+    isOnline,
+  } = useRuntimeStore.getState();
   const {
     showNotificationsCountInTray,
     useUnreadActiveIcon,
@@ -31,7 +35,7 @@ export function setTrayIconColorAndTitle() {
   let title = '';
   if (
     isOnline &&
-    !isError &&
+    !hasAnyAccountError &&
     notificationCount > 0 &&
     showNotificationsCountInTray
   ) {
@@ -40,7 +44,7 @@ export function setTrayIconColorAndTitle() {
 
   const appState: TrayAppState = !isOnline
     ? 'offline'
-    : isError
+    : hasAnyAccountError
       ? 'error'
       : 'online';