diff --git a/comfy/supported_models.py b/comfy/supported_models.py
index 185d29299..f0e5ec512 100644
--- a/comfy/supported_models.py
+++ b/comfy/supported_models.py
@@ -911,7 +911,7 @@ class WAN21_T2V(supported_models_base.BASE):
 
     memory_usage_factor = 1.0
 
-    supported_inference_dtypes = [torch.bfloat16, torch.float32]
+    supported_inference_dtypes = [torch.bfloat16, torch.float16, torch.float32]
 
     vae_key_prefix = ["vae."]
     text_encoder_key_prefix = ["text_encoders."]
diff --git a/comfy_extras/nodes_video.py b/comfy_extras/nodes_video.py
index f3922e03d..53920ba18 100644
--- a/comfy_extras/nodes_video.py
+++ b/comfy_extras/nodes_video.py
@@ -59,6 +59,7 @@ class SaveWEBM:
             frame = av.VideoFrame.from_ndarray(torch.clamp(frame[..., :3] * 255, min=0, max=255).to(device=torch.device("cpu"), dtype=torch.uint8).numpy(), format="rgb24")
             for packet in stream.encode(frame):
                 container.mux(packet)
+        container.mux(stream.encode())
         container.close()
 
         results = [{