diff --git a/PlotLine/Sql/060_Phase10H1_WordCompanionSceneLinksEmptySelections.sql b/PlotLine/Sql/060_Phase10H1_WordCompanionSceneLinksEmptySelections.sql
new file mode 100644
index 0000000..68347d1
--- /dev/null
+++ b/PlotLine/Sql/060_Phase10H1_WordCompanionSceneLinksEmptySelections.sql
@@ -0,0 +1,109 @@
+SET ANSI_NULLS ON;
+GO
+SET QUOTED_IDENTIFIER ON;
+GO
+
+CREATE OR ALTER PROCEDURE dbo.WordCompanion_SceneLinks_Update
+    @SceneID int,
+    @UserID int,
+    @CharacterIds nvarchar(max) = NULL,
+    @AssetIds nvarchar(max) = NULL,
+    @LocationIds nvarchar(max) = NULL
+AS
+BEGIN
+    SET NOCOUNT ON;
+
+    DECLARE @ProjectID int;
+    SELECT @ProjectID = b.ProjectID
+    FROM dbo.Scenes s
+    INNER JOIN dbo.Chapters c ON c.ChapterID = s.ChapterID
+    INNER JOIN dbo.Books b ON b.BookID = c.BookID
+    INNER JOIN dbo.Projects p ON p.ProjectID = b.ProjectID
+    INNER JOIN dbo.ProjectUserAccess pua ON pua.ProjectID = p.ProjectID
+    WHERE s.SceneID = @SceneID
+        AND s.IsArchived = 0
+        AND c.IsArchived = 0
+        AND b.IsArchived = 0
+        AND p.IsArchived = 0
+        AND pua.UserID = @UserID
+        AND pua.IsActive = 1;
+
+    IF @ProjectID IS NULL
+        RETURN;
+
+    DECLARE @Characters TABLE (ID int PRIMARY KEY);
+    DECLARE @Assets TABLE (ID int PRIMARY KEY);
+    DECLARE @Locations TABLE (ID int PRIMARY KEY);
+
+    INSERT @Characters (ID)
+    SELECT DISTINCT TRY_CONVERT(int, LTRIM(RTRIM(value)))
+    FROM STRING_SPLIT(ISNULL(@CharacterIds, N''), N',')
+    WHERE NULLIF(LTRIM(RTRIM(value)), N'') IS NOT NULL
+        AND TRY_CONVERT(int, LTRIM(RTRIM(value))) IS NOT NULL;
+
+    INSERT @Assets (ID)
+    SELECT DISTINCT TRY_CONVERT(int, LTRIM(RTRIM(value)))
+    FROM STRING_SPLIT(ISNULL(@AssetIds, N''), N',')
+    WHERE NULLIF(LTRIM(RTRIM(value)), N'') IS NOT NULL
+        AND TRY_CONVERT(int, LTRIM(RTRIM(value))) IS NOT NULL;
+
+    INSERT @Locations (ID)
+    SELECT DISTINCT TRY_CONVERT(int, LTRIM(RTRIM(value)))
+    FROM STRING_SPLIT(ISNULL(@LocationIds, N''), N',')
+    WHERE NULLIF(LTRIM(RTRIM(value)), N'') IS NOT NULL
+        AND TRY_CONVERT(int, LTRIM(RTRIM(value))) IS NOT NULL;
+
+    IF EXISTS (SELECT 1 FROM @Characters requested WHERE requested.ID <= 0 OR NOT EXISTS (SELECT 1 FROM dbo.Characters c WHERE c.CharacterID = requested.ID AND c.ProjectID = @ProjectID AND c.IsArchived = 0))
+        RETURN;
+    IF EXISTS (SELECT 1 FROM @Assets requested WHERE requested.ID <= 0 OR NOT EXISTS (SELECT 1 FROM dbo.StoryAssets sa WHERE sa.StoryAssetID = requested.ID AND sa.ProjectID = @ProjectID AND sa.IsArchived = 0))
+        RETURN;
+    IF EXISTS (SELECT 1 FROM @Locations requested WHERE requested.ID <= 0 OR NOT EXISTS (SELECT 1 FROM dbo.Locations l WHERE l.LocationID = requested.ID AND l.ProjectID = @ProjectID AND l.IsArchived = 0))
+        RETURN;
+
+    DELETE sc
+    FROM dbo.SceneCharacters sc
+    WHERE sc.SceneID = @SceneID
+        AND NOT EXISTS (SELECT 1 FROM @Characters requested WHERE requested.ID = sc.CharacterID)
+        AND sc.RoleInSceneTypeID IS NULL
+        AND sc.PresenceTypeID IS NULL
+        AND sc.LocationID IS NULL
+        AND sc.EntryLocationID IS NULL
+        AND sc.ExitLocationID IS NULL
+        AND sc.AppearanceNotes IS NULL
+        AND sc.OutfitDescription IS NULL
+        AND sc.PhysicalCondition IS NULL
+        AND sc.EmotionalState IS NULL
+        AND sc.KnowledgeNotes IS NULL;
+
+    INSERT dbo.SceneCharacters (SceneID, CharacterID)
+    SELECT @SceneID, requested.ID
+    FROM @Characters requested
+    WHERE NOT EXISTS (SELECT 1 FROM dbo.SceneCharacters sc WHERE sc.SceneID = @SceneID AND sc.CharacterID = requested.ID);
+
+    DELETE wcsa
+    FROM dbo.WordCompanionSceneAssets wcsa
+    WHERE wcsa.SceneID = @SceneID
+        AND NOT EXISTS (SELECT 1 FROM @Assets requested WHERE requested.ID = wcsa.StoryAssetID);
+
+    INSERT dbo.WordCompanionSceneAssets (SceneID, StoryAssetID)
+    SELECT @SceneID, requested.ID
+    FROM @Assets requested
+    WHERE NOT EXISTS (SELECT 1 FROM dbo.WordCompanionSceneAssets wcsa WHERE wcsa.SceneID = @SceneID AND wcsa.StoryAssetID = requested.ID);
+
+    DELETE wcsl
+    FROM dbo.WordCompanionSceneLocations wcsl
+    WHERE wcsl.SceneID = @SceneID
+        AND NOT EXISTS (SELECT 1 FROM @Locations requested WHERE requested.ID = wcsl.LocationID);
+
+    INSERT dbo.WordCompanionSceneLocations (SceneID, LocationID)
+    SELECT @SceneID, requested.ID
+    FROM @Locations requested
+    WHERE NOT EXISTS (SELECT 1 FROM dbo.WordCompanionSceneLocations wcsl WHERE wcsl.SceneID = @SceneID AND wcsl.LocationID = requested.ID);
+
+    SELECT @SceneID AS SceneId,
+        (SELECT COUNT(*) FROM @Characters) AS CharactersUpdated,
+        (SELECT COUNT(*) FROM @Assets) AS AssetsUpdated,
+        (SELECT COUNT(*) FROM @Locations) AS LocationsUpdated,
+        N'Scene links updated.' AS Message;
+END;
+GO
diff --git a/PlotLine/wwwroot/js/word-companion-host.js b/PlotLine/wwwroot/js/word-companion-host.js
index a38d916..cd77c19 100644
--- a/PlotLine/wwwroot/js/word-companion-host.js
+++ b/PlotLine/wwwroot/js/word-companion-host.js
@@ -810,8 +810,10 @@
             });
             updateCurrentSceneLinkState();
             setSceneLinksStatus("Scene links saved successfully.");
-        } catch {
+            setDiagnostics({ lastError: "-" });
+        } catch (error) {
             setSceneLinksStatus("Unable to save scene links.");
+            setDiagnostics({ lastError: errorText(error) });
         } finally {
             if (saveSceneLinksButton) {
                 saveSceneLinksButton.disabled = !resolvedSceneId;