diff --git a/libs/Ditto/core/atomic_components/motion_stitch.py b/libs/Ditto/core/atomic_components/motion_stitch.py
index 71b69c4..51a6aa5 100644
--- a/libs/Ditto/core/atomic_components/motion_stitch.py
+++ b/libs/Ditto/core/atomic_components/motion_stitch.py
@@ -623,18 +623,11 @@ class MotionStitch:
                 # 2. NUKE THE BOARD (Zero out pure twitch/noise)
                 delta_eye[...] *= 0.0
                 
-                # 3. Restore & Mirror Blink (Native Strength 1.0x)
-                # User confirmed original strength was fine, just one-eyed.
-                delta_eye[..., 34] = safe_right_blink * 1.0
-                delta_eye[..., 46] = safe_right_blink * 1.0
-                
-                # [Diagnostic v1.9.88] Mesh Coupling Test
-                # DISABLE BLINK to see if twitch stops.
-                # If twitch stops -> Blink KP is dragging mouth mesh (Mesh Coupling).
-                # If twitch persists -> Twitch is from elsewhere.
-                delta_eye[..., 34] = 0.0
-                delta_eye[..., 46] = 0.0
-                print(f"[AIIA DIAG] Frame {self.idx}: BLINK DISABLED for Mesh Coupling Test")
+                # 3. Restore & Mirror Blink (Reduced Amplitude 0.4x)
+                # [Fix v1.9.89] Confirmed Mesh Coupling. 1.0x blink drags mouth mesh.
+                # Solution: Reduce amplitude to 0.4x to minimize coupling.
+                delta_eye[..., 34] = safe_right_blink * 0.4
+                delta_eye[..., 46] = safe_right_blink * 0.4
                 
                 # 4. Restore Gaze (Original Strength)
                 delta_eye[..., 39:42] = safe_gaze
diff --git a/pyproject.toml b/pyproject.toml
index 36c1803..04b4697 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "aiia"
 description = "The Ultimate AI Audio/Video toolkit for ComfyUI. Features an enhanced Ditto (with optimizations that outperform official demos and other SOTA talking head models in lip-sync accuracy and natural motion), EchoMimic V3 & FLOAT, VibeVoice & CosyVoice 3.0 (Zero-Shot Voice Cloning), Multi-Role Podcast Generation, and a powerful Media Browser."
-version = "1.9.88"
+version = "1.9.89"
 license = {file = "LICENSE"}
 readme = "README.md"
 authors = [