diff --git a/osu.Game.Tests/Visual/Multiplayer/TestScenePlaylistsSongSelect.cs b/osu.Game.Tests/Visual/Multiplayer/TestScenePlaylistsSongSelect.cs
index fea6617d3f..b55102518a 100644
--- a/osu.Game.Tests/Visual/Multiplayer/TestScenePlaylistsSongSelect.cs
+++ b/osu.Game.Tests/Visual/Multiplayer/TestScenePlaylistsSongSelect.cs
@@ -74,14 +74,14 @@ public void TestItemAddedIfEmptyOnStart()
         [Test]
         public void TestItemAddedWhenCreateNewItemClicked()
         {
-            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem!());
             AddAssert("playlist has 1 item", () => SelectedRoom.Value.Playlist.Count == 1);
         }
 
         [Test]
         public void TestItemNotAddedIfExistingOnStart()
         {
-            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem!());
             AddStep("finalise selection", () => songSelect.FinaliseSelection());
             AddAssert("playlist has 1 item", () => SelectedRoom.Value.Playlist.Count == 1);
         }
@@ -89,19 +89,19 @@ public void TestItemNotAddedIfExistingOnStart()
         [Test]
         public void TestAddSameItemMultipleTimes()
         {
-            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem());
-            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem!());
+            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem!());
             AddAssert("playlist has 2 items", () => SelectedRoom.Value.Playlist.Count == 2);
         }
 
         [Test]
         public void TestAddItemAfterRearrangement()
         {
-            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem());
-            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem!());
+            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem!());
             AddStep("rearrange", () => SelectedRoom.Value.Playlist = SelectedRoom.Value.Playlist.Skip(1).Append(SelectedRoom.Value.Playlist[0]).ToArray());
 
-            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create new item", () => songSelect.BeatmapDetails.CreateNewItem!());
             AddAssert("new item has id 2", () => SelectedRoom.Value.Playlist.Last().ID == 2);
         }
 
@@ -112,9 +112,9 @@ public void TestAddItemAfterRearrangement()
         public void TestNewItemHasNewModInstances()
         {
             AddStep("set dt mod", () => SelectedMods.Value = new[] { new OsuModDoubleTime() });
-            AddStep("create item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create item", () => songSelect.BeatmapDetails.CreateNewItem!());
             AddStep("change mod rate", () => ((OsuModDoubleTime)SelectedMods.Value[0]).SpeedChange.Value = 2);
-            AddStep("create item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create item", () => songSelect.BeatmapDetails.CreateNewItem!());
 
             AddAssert("item 1 has rate 1.5", () =>
             {
@@ -145,7 +145,7 @@ public void TestGlobalModInstancesNotRetained()
                 mod = (OsuModDoubleTime)SelectedMods.Value[0];
             });
 
-            AddStep("create item", () => songSelect.BeatmapDetails.CreateNewItem());
+            AddStep("create item", () => songSelect.BeatmapDetails.CreateNewItem!());
 
             AddStep("change stored mod rate", () => mod.SpeedChange.Value = 2);
             AddAssert("item has rate 1.5", () =>