diff --git a/Instance/DlibDotNet.cs b/Instance/DlibDotNet.cs
index c41893c..71ab2e4 100644
--- a/Instance/DlibDotNet.cs
+++ b/Instance/DlibDotNet.cs
@@ -434,7 +434,7 @@ public partial class DlibDotNet
 
     private bool GetRunToDoCollectionFirst(Property.Models.Configuration propertyConfiguration, long ticks)
     {
-        bool result = IId.IsOffsetDeterministicHashCode(propertyConfiguration);
+        bool result = !IId.IsOffsetDeterministicHashCode(propertyConfiguration);
         if (!result)
         {
             string[] directories;
diff --git a/Shared/Models/Stateless/Methods/XDirectory.cs b/Shared/Models/Stateless/Methods/XDirectory.cs
index 83e76b0..9dac0e3 100644
--- a/Shared/Models/Stateless/Methods/XDirectory.cs
+++ b/Shared/Models/Stateless/Methods/XDirectory.cs
@@ -395,8 +395,8 @@ internal abstract partial class XDirectory
             if (!distinctDirectories.Contains(directory))
                 distinctDirectories.Add(directory);
         }
-        if (isOffsetDeterministicHashCode)
-            throw new Exception("Change Configuration Offset when ready to sort images!");
+        if (!isOffsetDeterministicHashCode)
+            throw new Exception("Change Configuration Offset after creating iso file with images sorted!");
         if (paddedCheck)
             throw new Exception("Maybe need to restart application!");
         return (distinctDirectories.ToArray(), results);