diff --git a/Directory.Build.props b/Directory.Build.props
index 60c623f..bcf22fe 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -2,7 +2,7 @@
 
 	<PropertyGroup>
 		<Product>Robots</Product>
-		<Version>1.0.4</Version>
+		<Version>1.1.0</Version>
 		<Description>Create and simulate ABB, KUKA, UR and Staubli robot programs.</Description>
 		<Authors>Robots Authors</Authors>
 		<Copyright>Copyright (c) 2021 $(Authors)</Copyright>
diff --git a/src/Robots.Grasshopper/RobotSystem/LoadRobotSystem.cs b/src/Robots.Grasshopper/RobotSystem/LoadRobotSystem.cs
index 434cd96..f630949 100644
--- a/src/Robots.Grasshopper/RobotSystem/LoadRobotSystem.cs
+++ b/src/Robots.Grasshopper/RobotSystem/LoadRobotSystem.cs
@@ -91,13 +91,18 @@ void UpdateValueList()
         foreach (string robotSystemName in robotSystems)
             valueList.ListItems.Add(new GH_ValueListItem(robotSystemName, $"\"{robotSystemName}\""));
 
-        if (selected is null)
-            return;
+        if (selected is not null)
+        {
+            var selectedIndex = valueList.ListItems.FindIndex(s => s.Name == selected.Name);
 
-        var selectedIndex = valueList.ListItems.FindIndex(s => s.Name == selected.Name);
+            if (selectedIndex != -1)
+            {
+                valueList.SelectItem(selectedIndex);
+                return;
+            }
+        }
 
-        if (selectedIndex != -1)
-            valueList.SelectItem(selectedIndex);
+        valueList.ExpireSolution(true);
     }
 
     // form
diff --git a/tests/Robots.Tests/Program.cs b/tests/Robots.Tests/Program.cs
index 4b63708..db81fed 100644
--- a/tests/Robots.Tests/Program.cs
+++ b/tests/Robots.Tests/Program.cs
@@ -5,4 +5,4 @@
 //new Performance();
 
 //var github = new OnlineLibrary();
-//await github.UpdateLibraryAsync();
+//await github.UpdateLibraryAsync();
\ No newline at end of file
diff --git a/tests/Robots.Tests/Robots.Tests.csproj b/tests/Robots.Tests/Robots.Tests.csproj
index 675606c..f8859b0 100644
--- a/tests/Robots.Tests/Robots.Tests.csproj
+++ b/tests/Robots.Tests/Robots.Tests.csproj
@@ -3,7 +3,7 @@
 	<PropertyGroup>		
 		<TargetFramework>net6.0</TargetFramework>
 		<IsPackable>false</IsPackable>
-		<GenerateProgramFile>false</GenerateProgramFile>
+		<GenerateProgramFile>true</GenerateProgramFile>
 	</PropertyGroup>
 
 	<ItemGroup>