diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 51c870e..10aed1d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,10 +1,8 @@
 name: CI
 
 on:
-  # workflow_dispatch:
-  
-  # push:
-  #   branches: [ master ]
+  push:
+     branches: [ master ]
   pull_request:
     branches: [ master ]
 
diff --git a/LogicBuilder.ComponentModel.Design.Serialization/DesignerSerializationManager.cs b/LogicBuilder.ComponentModel.Design.Serialization/DesignerSerializationManager.cs
index 8121278..9e1e8c9 100644
--- a/LogicBuilder.ComponentModel.Design.Serialization/DesignerSerializationManager.cs
+++ b/LogicBuilder.ComponentModel.Design.Serialization/DesignerSerializationManager.cs
@@ -474,8 +474,11 @@ protected virtual object CreateInstance(Type type, ICollection arguments, string
                     {
                         obj = TypeDescriptor.CreateInstance(this.provider, type, null, array);
                     }
-                    catch (MissingMethodException ex)
+                    catch (MissingMethodException)
                     {
+                        if (array == null || array.Length == 0)
+                            throw;
+
                         Type[] array2 = new Type[array.Length];
                         for (int i = 0; i < array.Length; i++)
                         {
@@ -523,7 +526,7 @@ protected virtual object CreateInstance(Type type, ICollection arguments, string
                         }
                         if (obj == null)
                         {
-                            throw ex;
+                            throw;
                         }
                     }
                 }
@@ -937,7 +940,7 @@ Type IDesignerSerializationManager.GetType(string typeName)
                     {
                         break;
                     }
-                    typeName = typeName.Substring(0, num) + "+" + typeName.Substring(num + 1, typeName.Length - num - 1);
+                    typeName = $"{typeName.Substring(0, num)}{typeName.Substring(num + 1, typeName.Length - num - 1)}";
                 }
             }
             return type;