diff --git a/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml b/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml
index 534491d7..de381446 100644
--- a/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml
+++ b/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml
@@ -53,7 +53,7 @@
         <Grid x:Name="TimedRoot" Visibility="Collapsed">
             <Grid.RowDefinitions>
                 <RowDefinition Height="Auto" />
-                <RowDefinition Height="Auto" />
+                <RowDefinition Height="{x:Bind helpers:XamlHelpers.DoubleToGridLength(TimedAllDayHeight), Mode=OneWay}" />
                 <RowDefinition Height="*" />
             </Grid.RowDefinitions>
             <Grid.ColumnDefinitions>
diff --git a/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml.cs b/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml.cs
index 4bf6a283..e8ee39cf 100644
--- a/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml.cs
+++ b/Wino.Mail.WinUI/Controls/Calendar/CalendarPeriodControl.xaml.cs
@@ -349,12 +349,14 @@ public sealed partial class CalendarPeriodControl : UserControl, INotifyProperty
                     TimedDayWidth)));
 
         var eventTemplate = (DataTemplate)Resources["CalendarEventTemplate"];
+
         ReplaceCollection(TimedAllDayItemsCollection, TimedCalendarLayoutCalculator.CalculateAllDayItems(_currentRange, CurrentItems, timedSurfaceWidth).Select(item =>
         {
             PrepareDisplayMetadata(item.Item, item.Date);
             item.Template = eventTemplate;
             return item;
         }));
+
         ReplaceCollection(TimedItemsCollection, _timedLayout.Items.Select(item =>
         {
             PrepareDisplayMetadata(item.Item, item.Date);
@@ -365,9 +367,11 @@ public sealed partial class CalendarPeriodControl : UserControl, INotifyProperty
         RenderTimedAllDayItems();
         RenderTimedItems();
 
-        TimedAllDayCanvas.Invalidate();
         TimedHeaderCanvas.Invalidate();
         TimedStructureCanvas.Invalidate();
+        TimedAllDayCanvas.Invalidate();
+
+        TimedAllDayHost.InvalidateArrange();
     }
 
     private void RefreshMonthView()
@@ -977,7 +981,9 @@ public sealed partial class CalendarPeriodControl : UserControl, INotifyProperty
     private void ResetTimedVisualState()
     {
         ResetAnimatedElement(TimedScrollViewer);
-        ResetAnimatedElement(TimedAllDayHost);
+
+        // TODO: This is buggy.
+        // ResetAnimatedElement(TimedAllDayHost);
     }
 
     private static void StartNavigationTransition(Compositor compositor, Visual visual, int direction, double width)
@@ -1009,7 +1015,8 @@ public sealed partial class CalendarPeriodControl : UserControl, INotifyProperty
         StartTimedElementTransition(compositor, TimedScrollViewer, signedTravel, 0f, 0.68f, TimeSpan.FromMilliseconds(240), direction >= 0 ? 0f : clipInset, direction >= 0 ? clipInset : 0f, animateScale: false);
         if (HasTimedAllDayItems)
         {
-            StartTimedElementTransition(compositor, TimedAllDayHost, signedTravel, 0f, 0.68f, TimeSpan.FromMilliseconds(240), direction >= 0 ? 0f : clipInset, direction >= 0 ? clipInset : 0f, animateScale: false);
+            // TODO: This is buggy.
+            // StartTimedElementTransition(compositor, TimedAllDayHost, signedTravel, 0f, 0.68f, TimeSpan.FromMilliseconds(240), direction >= 0 ? 0f : clipInset, direction >= 0 ? clipInset : 0f, animateScale: false);
         }
     }
 
@@ -1040,7 +1047,8 @@ public sealed partial class CalendarPeriodControl : UserControl, INotifyProperty
         StartTimedElementTransition(compositor, TimedScrollViewer, 0f, 18f, 0f, TimeSpan.FromMilliseconds(240), 0f, 0f, animateScale: false);
         if (HasTimedAllDayItems)
         {
-            StartTimedElementTransition(compositor, TimedAllDayHost, 0f, 18f, 0f, TimeSpan.FromMilliseconds(240), 0f, 0f, animateScale: false);
+            // TODO: This is buggy.
+            // StartTimedElementTransition(compositor, TimedAllDayHost, 0f, 18f, 0f, TimeSpan.FromMilliseconds(240), 0f, 0f, animateScale: false);
         }
     }
 
@@ -1059,7 +1067,8 @@ public sealed partial class CalendarPeriodControl : UserControl, INotifyProperty
         StartOpacityTransition(compositor, ElementCompositionPreview.GetElementVisual(TimedScrollViewer), 0.8f, TimeSpan.FromMilliseconds(160));
         if (HasTimedAllDayItems)
         {
-            StartOpacityTransition(compositor, ElementCompositionPreview.GetElementVisual(TimedAllDayHost), 0.8f, TimeSpan.FromMilliseconds(160));
+            // TODO: This is buggy.
+            // StartOpacityTransition(compositor, ElementCompositionPreview.GetElementVisual(TimedAllDayHost), 0.8f, TimeSpan.FromMilliseconds(160));
         }
     }
 
diff --git a/Wino.Mail.WinUI/Controls/Calendar/TimedCalendarLayout.cs b/Wino.Mail.WinUI/Controls/Calendar/TimedCalendarLayout.cs
index 464a7e2e..8f727cd5 100644
--- a/Wino.Mail.WinUI/Controls/Calendar/TimedCalendarLayout.cs
+++ b/Wino.Mail.WinUI/Controls/Calendar/TimedCalendarLayout.cs
@@ -29,7 +29,7 @@ internal sealed record TimedCalendarLayoutResult(IReadOnlyList<DateOnly> Visible
 
 internal static class TimedCalendarLayoutCalculator
 {
-    private const double AllDayItemHeight = 28d;
+    private const double AllDayItemHeight = 32d;
     private const double AllDayItemGap = 4d;
     private const double AllDaySectionPadding = 6d;