diff --git a/backend/app/jobs/notifications.py b/backend/app/jobs/notifications.py
index 5b7cbf6..cd3099e 100644
--- a/backend/app/jobs/notifications.py
+++ b/backend/app/jobs/notifications.py
@@ -103,6 +103,12 @@ async def _dispatch_events(db: AsyncSession, settings: Settings, now: datetime)
             and_(
                 CalendarEvent.start_datetime >= now,
                 CalendarEvent.start_datetime <= window_end,
+                # Exclude recurring parent templates — they duplicate the child instance rows.
+                # Parent templates have recurrence_rule set but no parent_event_id.
+                ~and_(
+                    CalendarEvent.recurrence_rule != None,  # noqa: E711
+                    CalendarEvent.parent_event_id == None,  # noqa: E711
+                ),
             )
         ).options(selectinload(CalendarEvent.location))
     )
diff --git a/frontend/src/components/layout/LockOverlay.tsx b/frontend/src/components/layout/LockOverlay.tsx
index cec2cd6..281faf7 100644
--- a/frontend/src/components/layout/LockOverlay.tsx
+++ b/frontend/src/components/layout/LockOverlay.tsx
@@ -56,7 +56,7 @@ export default function LockOverlay() {
   };
 
   return (
-    <div className="fixed inset-0 z-50 flex flex-col items-center justify-center bg-background animate-fade-in">
+    <div className="fixed inset-0 z-[100] flex flex-col items-center justify-center bg-background animate-fade-in">
       <AmbientBackground />
 
       <div className="relative z-10 flex flex-col items-center gap-6 w-full max-w-sm px-4 animate-slide-up">