diff --git a/UICompositionAnimations/Behaviours/PipelineBuilder.cs b/UICompositionAnimations/Behaviours/PipelineBuilder.cs
index 67c8997..e6747a0 100644
--- a/UICompositionAnimations/Behaviours/PipelineBuilder.cs
+++ b/UICompositionAnimations/Behaviours/PipelineBuilder.cs
@@ -60,8 +60,7 @@ private PipelineBuilder([NotNull] Func<Task<CompositionBrush>> factory)
         {
             string
                 guid = Guid.NewGuid().ToString("N"),
-                replaced = Regex.Replace(guid, "[0-9]", "_"),
-                id = new string(replaced.ToCharArray().Select((c, i) => c == '_' ? char.ToUpper((char)('a' + i % 26)) : c).ToArray());
+                id = Regex.Replace(guid, @"\d", m => ((char)('g' + m.Value[0] - '0')).ToString());
             SourceProducer = () => Task.FromResult(new CompositionEffectSourceParameter(id).To<IGraphicsEffectSource>());
             LazyParameters = new Dictionary<string, Func<Task<CompositionBrush>>> { { id, factory } };
             AnimationProperties = new string[0];
diff --git a/UICompositionAnimations/Properties/AssemblyInfo.cs b/UICompositionAnimations/Properties/AssemblyInfo.cs
index a0be0a0..f3ebc4d 100644
--- a/UICompositionAnimations/Properties/AssemblyInfo.cs
+++ b/UICompositionAnimations/Properties/AssemblyInfo.cs
@@ -23,8 +23,8 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("4.1.0.0")]
-[assembly: AssemblyFileVersion("4.1.0.0")]
-[assembly: AssemblyInformationalVersion("4.1.0")]
+[assembly: AssemblyVersion("4.1.1.0")]
+[assembly: AssemblyFileVersion("4.1.1.0")]
+[assembly: AssemblyInformationalVersion("4.1.1")]
 [assembly: ComVisible(false)]
 
diff --git a/UICompositionAnimations/UICompositionAnimations.nuspec b/UICompositionAnimations/UICompositionAnimations.nuspec
index 9a43609..fab902d 100644
--- a/UICompositionAnimations/UICompositionAnimations.nuspec
+++ b/UICompositionAnimations/UICompositionAnimations.nuspec
@@ -2,7 +2,7 @@
 <package>
   <metadata>
     <id>UICompositionAnimations</id>
-    <version>4.1.0</version>
+    <version>4.1.1</version>
     <title>UICompositionAnimations</title>
     <description>A wrapper UWP PCL to work with Windows.UI.Composition and XAML animations, and Win2D effects</description>
     <authors>Sergio Pedri</authors>
@@ -10,7 +10,7 @@
     <projectUrl>https://github.com/Sergio0694/UICompositionAnimations</projectUrl>
     <license type="expression">GPL-3.0-only</license>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <releaseNotes>New composition brush APIs and pipeline effects</releaseNotes>
+    <releaseNotes>Fixed a localization crash</releaseNotes>
     <copyright>Copyright © 2019</copyright>
     <tags>uwp composition animations xaml csharp windows winrt universal app ui win2d graphics</tags>
     <dependencies>