diff --git a/nodes.py b/nodes.py
index 227bd37..5023be7 100644
--- a/nodes.py
+++ b/nodes.py
@@ -3455,6 +3455,8 @@ class WanVideoSampler:
                         log.info(f"Sampling {total_frames} frames in {estimated_iterations} windows, at {latent.shape[3]*vae_upscale_factor}x{latent.shape[2]*vae_upscale_factor} with {steps} steps")
 
                         while True: # start video generation iteratively
+                            self.cache_state = [None, None]
+
                             cur_motion_frames_latent_num = int(1 + (cur_motion_frames_num-1) // 4)
                             if mode == "infinitetalk":
                                 cond_image = original_images[:, :, current_condframe_index:current_condframe_index+1] if cond_image is not None else None