diff --git a/src/features/Calendars/CalendarSlice.ts b/src/features/Calendars/CalendarSlice.ts
index d230fae..714ee88 100644
--- a/src/features/Calendars/CalendarSlice.ts
+++ b/src/features/Calendars/CalendarSlice.ts
@@ -433,8 +433,13 @@ const CalendarSlice = createSlice({
         state.pending = false
         if (
           action.payload?.message.includes('aborted') ||
-          action.error.name === 'AbortError'
+          action.error.name === 'AbortError' ||
+          action.payload?.message?.includes('not found in store')
         ) {
+          // "not found in store" is a boot race condition: useCalendarLoader
+          // dispatches getCalendarDetailAsync for cached selected calendars
+          // before getCalendarsListAsync has fulfilled. Safe to ignore — the
+          // detail fetch will be re-issued once the list is loaded.
           return
         }
         state.error =