diff --git a/nodes_sampler.py b/nodes_sampler.py
index 7ed6829..e590af5 100644
--- a/nodes_sampler.py
+++ b/nodes_sampler.py
@@ -2666,6 +2666,9 @@ class WanVideoSampler:
                                     del temporal_ref_latents, msk, bg_image_slice
                                 else:
                                     image_cond_in = torch.cat([torch.tile(torch.zeros_like(noise[:1]), [4, 1, 1, 1]), torch.zeros_like(noise)], dim=0).to(device)
+                            elif ref_latent is not None:
+                                # Use ref_latent even without bg_images
+                                image_cond_in = torch.cat([ref_latent.to(device), torch.zeros_like(noise)], dim=1)
                             else:
                                 image_cond_in = torch.cat([torch.tile(torch.zeros_like(noise[:1]), [4, 1, 1, 1]), torch.zeros_like(noise)], dim=0).to(device)