diff --git a/Assets/Fungus/Scripts/Editor/BlockEditor.cs b/Assets/Fungus/Scripts/Editor/BlockEditor.cs
index 412fe4888..04e178b0e 100644
--- a/Assets/Fungus/Scripts/Editor/BlockEditor.cs
+++ b/Assets/Fungus/Scripts/Editor/BlockEditor.cs
@@ -72,9 +72,9 @@ protected void CacheCallerString()
                 .Where(x => x is IBlockCaller)
                 .Select(x => x as IBlockCaller)
                 .Where(x => x.MayCallBlock(targetBlock))
-                .Select(x => x.GetLocationIdentifier()).ToList();
+                .Select(x => x.GetLocationIdentifier()).ToArray();
 
-            if (callers.Count > 0)
+            if (callers != null && callers.Length > 0)
                 callersString = string.Join("\n", callers);
             else
                 callersString = "None";
diff --git a/Assets/Fungus/Scripts/Editor/VariableListAdaptor.cs b/Assets/Fungus/Scripts/Editor/VariableListAdaptor.cs
index fcc6cd150..fc594466c 100644
--- a/Assets/Fungus/Scripts/Editor/VariableListAdaptor.cs
+++ b/Assets/Fungus/Scripts/Editor/VariableListAdaptor.cs
@@ -317,14 +317,20 @@ private void FindUsage(Variable variable)
         {                
             var varRefs = EditorExtensions.FindObjectsOfInterface<IVariableReference>()
                 .Where(x => x.HasReference(variable))
-                .Select(x => x.GetLocationIdentifier()).ToList(); ;
+                .Select(x => x.GetLocationIdentifier()).ToArray(); ;
 
-            string varRefString = variable.Key + " referenced in;\n";
+            string varRefString = variable.Key;
 
-            if (varRefs.Count > 0)
-                varRefString += string.Join("\n", varRefs);
+            if (varRefs != null && varRefs.Length > 0)
+            {
+                varRefString += " referenced in " + varRefs.Length.ToString() + " places:\n";
+
+                varRefString += string.Join("\n - ", varRefs);
+            }
             else
-                varRefString += "None";
+            {
+                varRefString += ", found no references.";
+            }
 
             Debug.Log(varRefString);
         }