diff --git a/src/libs/ModernMT/Generated/ModernMT.Exceptions.g.cs b/src/libs/ModernMT/Generated/ModernMT.Exceptions.g.cs
index ac61a01..beb5e5f 100644
--- a/src/libs/ModernMT/Generated/ModernMT.Exceptions.g.cs
+++ b/src/libs/ModernMT/Generated/ModernMT.Exceptions.g.cs
@@ -20,6 +20,32 @@ public partial class ApiException : global::System.Exception
         /// </summary>
         public string? ResponseBody { get; set; }
 
+        /// <summary>
+        /// Successful HTTP responses that fail during processing put the cause before a bounded body preview.
+        /// Inspect ResponseBody for the full response; HTTP service-error messages retain their existing format.
+        /// </summary>
+        public override string Message
+        {
+            get
+            {
+                if ((int)StatusCode < 200 || (int)StatusCode >= 300 || InnerException == null)
+                {
+                    return base.Message;
+                }
+
+                string? path = (InnerException as global::System.Text.Json.JsonException)?.Path;
+                return "Response processing failed after successful HTTP " +
+                    ((int)StatusCode).ToString(global::System.Globalization.CultureInfo.InvariantCulture) + ": " +
+                    InnerException.GetType().FullName + ": " + BoundDiagnosticText(InnerException.Message) +
+                    (string.IsNullOrEmpty(path) ? string.Empty : " Path: " + BoundDiagnosticText(path, 256)) +
+                    "\nResponse preview: " + BoundDiagnosticText(base.Message);
+            }
+        }
+
+        private static string BoundDiagnosticText(string? value, int maximumLength = 512) =>
+            value == null ? string.Empty :
+            value.Length <= maximumLength ? value : value.Substring(0, maximumLength) + "... [truncated]";
+
         /// <summary>
         /// The response headers.
         /// </summary>
diff --git a/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContext.g.cs b/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContext.g.cs
index f6423d1..1793e5c 100644
--- a/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContext.g.cs
+++ b/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContext.g.cs
@@ -36,6 +36,7 @@ namespace ModernMT
     #pragma warning restore CS3016
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::ModernMT.JsonSerializerContextTypes))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::System.Collections.Generic.List<object>), TypeInfoPropertyName = "SystemCollectionsGeneric_ObjectList")]
+    [global::System.Text.Json.Serialization.JsonSerializable(typeof(string[]))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::ModernMT.TranslateRequest))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(string))]
     [global::System.Text.Json.Serialization.JsonSerializable(typeof(global::ModernMT.TranslateRequestPriority), TypeInfoPropertyName = "TranslateRequestPriority2")]
diff --git a/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContextTypes.g.cs b/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContextTypes.g.cs
index ff10b6d..1279e48 100644
--- a/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContextTypes.g.cs
+++ b/src/libs/ModernMT/Generated/ModernMT.JsonSerializerContextTypes.g.cs
@@ -25,6 +25,11 @@ public sealed partial class JsonSerializerContextTypes
         /// </summary>
         public global::System.Collections.Generic.List<object>? ObjectList { get; set; }
 
+        /// <summary>
+        /// String arrays used by dynamic JSON option values.
+        /// </summary>
+        public string[]? StringArray { get; set; }
+
         /// <summary>
         ///
         /// </summary>