diff --git a/aiia_audio_enhance.py b/aiia_audio_enhance.py
index d9ebbed..06557f8 100644
--- a/aiia_audio_enhance.py
+++ b/aiia_audio_enhance.py
@@ -367,9 +367,15 @@ class AIIA_Audio_Enhance:
                 
                 # Also inject into .hp (HyperParameters) if available
                 if hasattr(_cached_enhancer, "hp"):
-                    _cached_enhancer.hp.nfe = nfe
-                    _cached_enhancer.hp.solver = solver.lower()
-                    _cached_enhancer.hp.tau = tau
+                    try:
+                        # Fix FrozenInstanceError: .hp is a frozen dataclass
+                        object.__setattr__(_cached_enhancer.hp, 'nfe', nfe)
+                        object.__setattr__(_cached_enhancer.hp, 'solver', solver.lower())
+                        object.__setattr__(_cached_enhancer.hp, 'tau', tau)
+                    except Exception as e:
+                        print(f"[AIIA] Warning: Failed to force set hp params: {e}")
+                        # Fallback: Maybe replace hp?
+                        pass
                     
                 # Also inject directly (just in case)
                 _cached_enhancer.nfe = nfe
diff --git a/pyproject.toml b/pyproject.toml
index 5c3637f..e3d1192 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "aiia"
 description = "A suite of powerful, intuitive, and highly customizable nodes for ComfyUI, featuring a high-performance Media Browser and OOM-safe video tools."
-version = "1.4.66"
+version = "1.4.67"
 license = {file = "LICENSE"}
 readme = "README.md"
 authors = [