diff --git a/OpenNest.Posts.Cincinnati/CincinnatiPartSubprogramWriter.cs b/OpenNest.Posts.Cincinnati/CincinnatiPartSubprogramWriter.cs
index f08f62e..38f944b 100644
--- a/OpenNest.Posts.Cincinnati/CincinnatiPartSubprogramWriter.cs
+++ b/OpenNest.Posts.Cincinnati/CincinnatiPartSubprogramWriter.cs
@@ -99,6 +99,7 @@ public sealed class CincinnatiPartSubprogramWriter
                     mapping[key] = subNum;
 
                     var pgm = part.Program.Clone() as Program;
+                    pgm.Mode = Mode.Absolute;
                     var bbox = pgm.BoundingBox();
                     pgm.Offset(-bbox.Location.X, -bbox.Location.Y);
 
diff --git a/OpenNest.Posts.Cincinnati/FeatureUtils.cs b/OpenNest.Posts.Cincinnati/FeatureUtils.cs
index 20fc501..e4384b5 100644
--- a/OpenNest.Posts.Cincinnati/FeatureUtils.cs
+++ b/OpenNest.Posts.Cincinnati/FeatureUtils.cs
@@ -69,8 +69,11 @@ public static class FeatureUtils
     /// Splits a part's program into features by rapids, classifies each as etch or cut,
     /// and orders etch features before cut features.
     /// </summary>
-    public static List<(List<ICode> codes, bool isEtch)> SplitAndClassify(Part part) =>
-        ClassifyAndOrder(SplitByRapids(part.Program.Codes));
+    public static List<(List<ICode> codes, bool isEtch)> SplitAndClassify(Part part)
+    {
+        part.Program.Mode = Mode.Absolute;
+        return ClassifyAndOrder(SplitByRapids(part.Program.Codes));
+    }
 
     /// <summary>
     /// Returns true if any non-rapid move in the feature has LayerType.Scribe.
diff --git a/OpenNest.Posts.Cincinnati/MaterialLibraryResolver.cs b/OpenNest.Posts.Cincinnati/MaterialLibraryResolver.cs
index 6fca9e3..a42c2c4 100644
--- a/OpenNest.Posts.Cincinnati/MaterialLibraryResolver.cs
+++ b/OpenNest.Posts.Cincinnati/MaterialLibraryResolver.cs
@@ -24,7 +24,7 @@ public sealed class MaterialLibraryResolver
             System.Math.Abs(e.Thickness - thickness) <= ThicknessTolerance &&
             string.Equals(e.Gas, gas, StringComparison.OrdinalIgnoreCase));
 
-        return entry?.Library ?? "";
+        return EnsureLibExtension(entry?.Library ?? "");
     }
 
     public string ResolveEtchLibrary(string gas)
@@ -32,7 +32,18 @@ public sealed class MaterialLibraryResolver
         var entry = _etchLibraries.FirstOrDefault(e =>
             string.Equals(e.Gas, gas, StringComparison.OrdinalIgnoreCase));
 
-        return entry?.Library ?? "";
+        return EnsureLibExtension(entry?.Library ?? "");
+    }
+
+    private static string EnsureLibExtension(string library)
+    {
+        if (string.IsNullOrEmpty(library))
+            return library;
+
+        if (!library.EndsWith(".lib", StringComparison.OrdinalIgnoreCase))
+            return library + ".lib";
+
+        return library;
     }
 
     public static string ResolveGas(Nest nest, CincinnatiPostConfig config)