TypeError: download_file() got an unexpected keyword argument 'gen'

[R00G3R]

Since updating to the new v13 release, whenever the software attempts to automatically download a missing model (such as Qwen3-VL-4B-Instruct), the execution fails and aborts the task queue due to an unexpected keyword argument (gen) being passed to the download_file function.

Steps to Reproduce

1. Update to version v13 and initiate a task that requires the automatic download of an uncached model (e.g., Qwen3-VL-4B-Instruct).
2. The system invokes load_models passing the gen parameter.
3. download_models attempts to call download_file with gen=gen.
4. A TypeError is triggered.

Traceback (most recent call last):
  File "D:\Wan2GP\wgp.py", line 3705, in download_models
    download_file(url, filename, gen=gen, show_filename=show_filename)
  File "D:\Wan2GP\wgp.py", line 3618, in download_file
    return shared_download_file(url, filename, gen=gen, show_filename=show_filename)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: download_file() got an unexpected keyword argument 'gen'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Wan2GP\wgp.py", line 8755, in queue_worker_func
    success = generate_media(task, send_cmd, plugin_data=plugin_data,  **filtered_params)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Wan2GP\wgp.py", line 7029, in generate_media
    wan_model, offloadobj = load_models(model_type, override_profile, output_type=output_type, config_id=config, gen=gen, loading_callback=offload.LoadingCallback(lambda: gen.get("abort", False), loading_progress), **model_kwargs)
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "D:\Wan2GP\wgp.py", line 4103, in load_models
    download_models(filename, file_model_type, file_source_type, submodel_no, model_def = model_def, gen=gen)
  File "D:\Wan2GP\wgp.py", line 3710, in download_models
    raise Exception(f"{prop} '{url}' is invalid: {str(e)}'")
Exception: preload_URLs 'https://huggingface.co/DeepBeepMeep/krea-2/resolve/main/Qwen3-VL-4B-Instruct/Qwen3-VL-4B-Instruct_vision_bf16.safetensors|Qwen3-VL-4B-Instruct' is invalid: download_file() got an unexpected keyword argument 'gen''
WanGP API queue error client_id=api_1789348579079581600_1 aborted=False error=preload_URLs 'https://huggingface.co/DeepBeepMeep/krea-2/resolve/main/Qwen3-VL-4B-Instruct/Qwen3-VL-4B-Instruct_vision_bf16.safetensors|Qwen3-VL-4B-Instruct' is invalid: download_file() got an unexpected keyword argument 'gen''
Error Queue autosaved successfully to error_queue_20260913_221620.zip
Error Queue autosaved successfully to error_queue_20260913_221620.zip
Traceback (most recent call last):
  File "D:\Wan2GP\shared\deepy\hybrid.py", line 202, in _run_generation
    for updates in self._process_queue(self._state):
  File "D:\Wan2GP\wgp.py", line 8825, in _process_tasks
    raise gr.Error(data, print_exception= False, duration = 0)
gradio.exceptions.Error: "preload_URLs 'https://huggingface.co/DeepBeepMeep/krea-2/resolve/main/Qwen3-VL-4B-Instruct/Qwen3-VL-4B-Instruct_vision_bf16.safetensors|Qwen3-VL-4B-Instruct' is invalid: download_file() got an unexpected keyword argument 'gen''"

[TinyMikeG]

I had this issue yesterday too. In fact IWanGP wouldn't start either so after a full reinstall it's working again but because I have my models backed up, I just put them back. Just for you I just tested to see if I could download a new model and I get the same issue with a new install. I just noticed there is an update (update version 0.6.5) this morning but I'm nervous about installing it after yesterday's fiasco and this issue but maybe they've addressed it. I'll wait for someone to tell me if it does, I can't find a changelog and the app doesn't tell you, it just installs the update. It also doesn't update the progress any more, so maybe it's for that. Also, don't update PyTorch in the environment updates section either, that messes it up too.

Update about the new Tauri update fixing some issues with V13: https://github.com/GKartist75/Wan2GP-Desktop-Tauri/releases
It didn't resolve the download issue, tried to install VACE and get the same error. It didn't fix the Progress feedback either.

[dondeepak]

same download issue a am also facing most of the downloads keep failed