diff --git a/osu.Game/Graphics/UserInterface/OsuDropdown.cs b/osu.Game/Graphics/UserInterface/OsuDropdown.cs
index fc3a7229fa..cc76c12975 100644
--- a/osu.Game/Graphics/UserInterface/OsuDropdown.cs
+++ b/osu.Game/Graphics/UserInterface/OsuDropdown.cs
@@ -17,6 +17,8 @@ namespace osu.Game.Graphics.UserInterface
 {
     public class OsuDropdown<T> : Dropdown<T>, IHasAccentColour
     {
+        private const float corner_radius = 4;
+
         private Color4 accentColour;
 
         public Color4 AccentColour
@@ -57,9 +59,11 @@ namespace osu.Game.Graphics.UserInterface
             // todo: this uses the same styling as OsuMenu. hopefully we can just use OsuMenu in the future with some refactoring
             public OsuDropdownMenu()
             {
-                CornerRadius = 4;
+                CornerRadius = corner_radius;
                 BackgroundColour = Color4.Black.Opacity(0.5f);
 
+                MaskingContainer.CornerRadius = corner_radius;
+
                 // todo: this uses the same styling as OsuMenu. hopefully we can just use OsuMenu in the future with some refactoring
                 ItemsContainer.Padding = new MarginPadding(5);
             }
@@ -138,7 +142,7 @@ namespace osu.Game.Graphics.UserInterface
                     Foreground.Padding = new MarginPadding(2);
 
                     Masking = true;
-                    CornerRadius = 6;
+                    CornerRadius = corner_radius;
                 }
 
                 [BackgroundDependencyLoader]
@@ -237,7 +241,7 @@ namespace osu.Game.Graphics.UserInterface
 
                 AutoSizeAxes = Axes.None;
                 Margin = new MarginPadding { Bottom = 4 };
-                CornerRadius = 4;
+                CornerRadius = corner_radius;
                 Height = 40;
 
                 Foreground.Children = new Drawable[]
diff --git a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
index fcff672045..865e225645 100644
--- a/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
+++ b/osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
@@ -61,7 +61,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
 
             AddRangeInternal(new[]
             {
-                DragBox = CreateDragBox(select),
+                DragBox = CreateDragBox(selectBlueprintsFromDragRectangle),
                 selectionHandler,
                 SelectionBlueprints = CreateSelectionBlueprintContainer(),
                 selectionHandler.CreateProxy(),
@@ -326,7 +326,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
         /// Select all masks in a given rectangle selection area.
         /// </summary>
         /// <param name="rect">The rectangle to perform a selection on in screen-space coordinates.</param>
-        private void select(RectangleF rect)
+        private void selectBlueprintsFromDragRectangle(RectangleF rect)
         {
             foreach (var blueprint in SelectionBlueprints)
             {
diff --git a/osu.Game/Screens/Edit/Editor.cs b/osu.Game/Screens/Edit/Editor.cs
index 3ba3eb108a..ac1f61c4fd 100644
--- a/osu.Game/Screens/Edit/Editor.cs
+++ b/osu.Game/Screens/Edit/Editor.cs
@@ -398,7 +398,11 @@ namespace osu.Game.Screens.Edit
                     break;
             }
 
-            LoadComponentAsync(currentScreen, screenContainer.Add);
+            LoadComponentAsync(currentScreen, newScreen =>
+            {
+                if (newScreen == currentScreen)
+                    screenContainer.Add(newScreen);
+            });
         }
 
         private void seek(UIEvent e, int direction)