diff --git a/sagemaker-train/src/sagemaker/train/rlvr_trainer.py b/sagemaker-train/src/sagemaker/train/rlvr_trainer.py
index 49b35f124e..333a93fc55 100644
--- a/sagemaker-train/src/sagemaker/train/rlvr_trainer.py
+++ b/sagemaker-train/src/sagemaker/train/rlvr_trainer.py
@@ -171,6 +171,9 @@ def _process_hyperparameters(self):
             if hasattr(self.hyperparameters, 'reward_lambda_arn'):
                 delattr(self.hyperparameters, 'reward_lambda_arn')
                 self.hyperparameters._specs.pop('reward_lambda_arn', None)
+            if hasattr(self.hyperparameters, 'preset_reward_function'):
+                delattr(self.hyperparameters, 'preset_reward_function')
+                self.hyperparameters._specs.pop('preset_reward_function', None)
             if hasattr(self.hyperparameters, 'data_path'):
                 delattr(self.hyperparameters, 'data_path')
                 self.hyperparameters._specs.pop('data_path', None)
diff --git a/sagemaker-train/tests/integ/train/test_rlvr_trainer_integration.py b/sagemaker-train/tests/integ/train/test_rlvr_trainer_integration.py
index 63d3ae3134..3cf6851a98 100644
--- a/sagemaker-train/tests/integ/train/test_rlvr_trainer_integration.py
+++ b/sagemaker-train/tests/integ/train/test_rlvr_trainer_integration.py
@@ -22,7 +22,7 @@
 from sagemaker.train.common import TrainingType
 
 
-@pytest.mark.skip(reason="Skipping GPU resource intensive test")
+# @pytest.mark.skip(reason="Skipping GPU resource intensive test")
 def test_rlvr_trainer_lora_complete_workflow(sagemaker_session):
     """Test complete RLVR training workflow with LORA."""