diff --git a/comfyui_spectrum/runtime.py b/comfyui_spectrum/runtime.py
index 1937d17..3440b10 100644
--- a/comfyui_spectrum/runtime.py
+++ b/comfyui_spectrum/runtime.py
@@ -357,7 +357,7 @@ class SpectrumRuntime:
             step.actual_feature_device = feature.device
         if step.actual_feature_dtype is None:
             step.actual_feature_dtype = feature.dtype
-        step.call_actual_features[resolved_call_id] = feature.detach()
+        step.call_actual_features[resolved_call_id] = feature.detach().clone()
 
     @staticmethod
     def _reorder_feature_to_labels(