diff --git a/src/libs/StepFun/Generated/StepFun.JsonConverters.OneOf2.g.cs b/src/libs/StepFun/Generated/StepFun.JsonConverters.OneOf2.g.cs
index b8c1149..a1afcec 100644
--- a/src/libs/StepFun/Generated/StepFun.JsonConverters.OneOf2.g.cs
+++ b/src/libs/StepFun/Generated/StepFun.JsonConverters.OneOf2.g.cs
@@ -107,7 +107,10 @@ public class OneOfJsonConverter<T1, T2> : global::System.Text.Json.Serialization
                 catch (global::System.InvalidOperationException)
                 {
                 }
+            }
 
+            if (value1 == null && value2 == null)
+            {
                 try
                 {